It’s time to customize the appearance of Mac OS X 10.7 again. We recently showed you how to change Dashboards wallpaper image from that Lego-like pattern to anything else, and then we showed you how to change Launchpads folder background pattern to your choice. Next up is Mission Control’s background image, say goodbye to Linen and hello to whatever wallpaper you want to see.

Pick a New Mission Control Background Image and Convert it to PNG
First up, you need to pick a PNG file you want to set as the new Mission Control background. I’m mildly obsessed with iClouds t-shirt background but for the purpose of this walkthrough I’ll use a more obvious change of some coral reef. The image file must be a PNG and it must be named “defaultdesktop.png”, Preview makes it easy to convert or export any image as a PNG:

• Select the File menu and navigate to “Export”
• Choose “PNG” as the filetype and save the image name as “defaultdesktop.png”

Note: you can choose a repeating pattern image or a large wallpaper, if you choose a large wallpaper make sure it at least matches your screen resolution or it can look awful.

Got your image saved? Great. Now we can proceed to customization.
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Future versions of Mac OS X and iOS may be even more gesture based, as a new Apple patent shows off a variety of complex multi-touch gestures to perform various system tasks. A few of the patented gestures and behaviors and their potential functions include:

• Digging a hole – presumably to move, copy, or save files and windows
• Opening a trap door or window – possibly to open new windows or applications?
• Shredding – presumably to close or minimize a window or delete a document
• Pouring – combining gestures with physically moving a device, this could be a new gesture based method of transferring files from one device to another
• File aging – icons show gradual deterioration as they get older (aliases in Mac OS X already do this)
• Shake to arrange icons – self explanatory, instead of selecting “Arrange files” from a menu you could just shake the device

Typically Apple patents don’t indicate much more than Apple’s wildly creative side, but with how prominent gestures are in Mac OS X Lion and iOS 5, this particular patent shows a lot more real-world potential than usual. The other noteworthy side of the patent is the obvious touch-screen interface to something that looks more like Mac OS X than iOS, but you can read into that how you want. I should point out that some of the above potential explanations are my own guesses as to the gestures functionality, but you are encouraged to read the patent, look at the drawings, and arrive at your own conclusions.

More images from the patent are below, or you can read a great breakdown of the patent at PatentlyApple.com
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Is Apple going to announce iPhone 5 on September 7? According to Kodiwarisan, Apple will be hosting a media event on Wednesday, September 7, where new iPods and presumably the upcoming iPhone 5 will be announced.

MacRumors followed up on Kodiwarisans date and confirmed it as meaningful, and reminds us that past September events were also earlier in the month:

Apple has traditionally held their Fall media events in the first part of September with the past three events taking place on September 1st, 2010, September 9th, 2009, and September 9th, 2008. Last year’s event introduced new iPod touch, iPod nano and iPod shuffle models. This year’s event, however, has been widely expected to also incorporate the rumored iPhone 5 announcement. We confirmed with Kodawarisan that the date was not the product of guesswork, but came from a source in the know.

The date may have come from schedules at traditional Apple media event locations, like the Moscone Center or the Yerba Buena Center for the Arts.

There are a few things that should be pointed out. First, an announcement doesn’t mean a launch, and this is important because the the only time Apple has publicly given to hint at an iOS 5 release date has been a vague “Fall 2011” date. It’s practically guaranteed that new iOS hardware won’t ship without iOS 5preinstalled. In other words, products may be announced, but not actually ship until weeks or even a month later. That would seem to correspond with an October availability for the next-gen iPhone, as AllThingsD/WSJ published earlier in the month.

The iPhone 5 is clearly the hot product that everyone is waiting for, but other fall product rumors have suggested the possibility of a retina iPad, a discontinuing of the iPod touch in favor of a cheap pay-go iPhone, and an updated Apple TV. We’ll find out in just a few weeks.

Update: Jim “The Beard” Dalrymple seems to debunk this one, citing his own sources.

Think Full Screen app mode wastes an external displays screen real estate in Mac OS X Lion? Think again. Despite various reports to the contrary, and even early experience with the Developer Preview, some Full Screen apps in Mac OS X Lion work just fine with multiple monitor Mac setups. In fact, the secondary display can hold toolbars, panels, windows, and other app data directly over the linen covered screen, without incident.
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Aside from the keyboard shortcuts, Grab, and other screen shot apps, you can also take screenshots of your Mac OS X desktop directly from the Terminal with the ‘screencapture’ command.

Here is a detailed overview of this utility and how to use it, which allows capturing screenshots from the command line with ease.

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If you use multiple Desktops (aka Spaces aka Virtual Desktops) in OS X Lion’s Mission Control, you can set apps to specific Desktops, all Desktops, or no specific Desktop at all.

• Right-click on the apps icon in the Dock
• Navigate to Options, and then from the “Assign To” sub-menu select one of the three choices:
• All Desktops – the app will appear on all Desktops, without causing a switch
• This Desktop – Desktop-specific, this will cause Desktops to switch when the app is selected
• None – the default setting

The main difference with the choices is how apps interact within Mission Control, and whether or not they will automatically cause a Desktop switch based on their selection or not.

Check out more Mac OS X 10.7 tips while you’re at it.

Want to get the most out of Mac OS X native Full Screen app mode? Assign a keyboard shortcut to toggle Full Screen mode with a simple keystroke. This will work to flip in and out of full screen mode of Mac OS in any app that supports the feature, and it only takes a minute or so to setup.

Modern versions of MacOS and Mac OS X already have this, but prior versions of Mac OS X can choose whichever keyboard shortcut you’d like to perform the function, just be sure to pick one that doesn’t conflict with anything else.

The tutorial here will demonstrate the keyboard shortcut for toggling in and out of full screen mode on MacOS and Mac OS X, as well as show you how to setup a keystroke for this capability in earlier versions of Mac system software.

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FileVault 2 is the all new disk encryption method that comes with Lion, and it’s more secure than ever, using XTS-AES 128 encryption on your entire disk, as opposed to just the user directory as in past versions. The other huge change that came with FileVault 2 is the significant performance boost, where using full disk encryption barely makes a dent on system performance.

Just how fast is FileVault 2? See for yourself with these benchmark charts on a variety of SSD and traditional hard drive configurations.
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A recent addition to Mac OS X and modern versions of Xcode development tools is a utility called Network Link Conditioner, a highly customizable tool that lets you simulate a variety of common internet connectivity speeds.

The utility is aimed at Mac and iOS developers so they can test their apps response times on a variety of network conditions, but it’s also extremely useful for IT admins, network administrators, and web developers. Basically anyone who needs to simulate any specific internet connection speed can benefit from the utility, and it’s a free download available from Apple.

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Ever wish you could access an applications menubar immediately, from anywhere? MenuPop fulfills this desire, activating an apps menu from anywhere with the click of a hot key or mouse cursor, by creating a contextual menu out of the main menu. This means you can access the Apple  menu, File, Edit, everything, instantly from a quick shortcut.

MenuPop is a great tool especially for Mac users with multiple displays, because once you set the primary display, the menubar sticks on that screen only. It’s also very handy if you spend a lot of time in OS X Lion’s full screen apps. Less moving the cursor means more productivity, and plus it’s free to download, so why not give it a try?

Download MenuPop from the Mac App Store – free August 9 only, otherwise $4.99

The app works fine in nearly all applications in Mac OS X 10.6 and OS X 10.7, and you can adjust the font size of the popup menu to accomodate your preferences. It’s fairly customizable, so be sure to check out the preferences to get a feel for the apps abilities.

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Apple’s market capitalization reached $341.5 billion today in trading, becoming the worlds largest and most valuable company. Apples new position in the top spot just barely edges out oil giant Exxon Mobil’s $341.4 billion, and is more of a function of the skittish behavior on Wall Street than any particular news today since both stocks are down quite a ways from their 52-week highs. Nonetheless, this is quite an amazing feat for a company that was just $7.68 a share a decade ago and on the verge of bankruptcy.

If you really want shareholder envy, check out what your net worth would be if you had invested in Apple stock rather than buying Apple equipment.

Just look at Apple’s 10 year chart when compared to cash-cow Exxon:
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A fair amount of MacBook Pro 2010 (and some 2011) users are reporting stability issues with their NVIDIA 330M equipped Macs and Mac OS X 10.7 Lion, with problems including kernel panics, random system crashes, blank or black screens, inability to wake from sleep, external displays not working, and assorted other headaches.

The Macs most affected by this seem to be the MacBook Pro 15″ and 17″ with Core i5 and Core i7 CPU’s and the switchable Intel HD 3000 and NVIDIA 330M GPU, with the majority of problems triggered once the NVIDIA GPU is activated. An attempted workaround has been to use gfxCardStatus to force Mac OS X to always use the Intel 3000 GPU, but that is not considered a consistently reliable solution.

The issues have been annoying enough for some users to downgrade back to 10.6 Snow Leopard until an official fix comes from Apple, but before you do that, try out this fix sent in by one of our readers.
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The iPhone Dev Team has released Redsn0w 0.9.8b5 to jailbreak iOS 5 beta 5, the jailbreak is intended only for developers who want to assure their Cydia apps work fine in the newest iOS beta, and neither iOS 5 beta or this version of redsn0w are intended for widespread consumption. Supported hardware includes iPhone 3GS, iPhone 4, iPod touch 3rd and 4th gen, and iPad 1.

Download Redsn0w 0.9.8b5

These are direct download links:

• Download redsn0w 0.98b5 (Mac OS X)
• Download redsn0w 0.98b5 (Windows)

Point redsn0w directly at the beta 5 IPSW file and proceed with everything else as usual.

Understand the difference between a tethered vs untethered jailbreak, but in short you will need to connect your iOS hardware to a computer upon every reboot of the device. There are also various reports of quirkiness when attempting to SSH into the iOS device, iBooks and other apps may crash, some Cydia apps cause Springboard to refresh, and there is other behavior that is characteristic of an unfinished beta release, further emphasizing this is not yet ready for widespread adoption.

Apple has released Lion Recovery Disk Assistant, a small utility that provides the ability to create an external bootable recovery drive for Mac OS X 10.7 Lion. This should quell some of the complaints from users who didn’t want to make a Lion USB install drive or boot DVD, or who were otherwise unsatisfied with the Lion Recovery HD partition because it existed on the same boot disk.

Even if you made your own Lion boot disk, it’s a good idea to create one of these Recovery disks as a troubleshooting tool.

Requirements to use Lion Recovery Disk Assistant:

• Mac running OS X 10.7 Lion with an existing Recovery HD partition – if you have installed Mac OS X Lion you have this
• An external USB hard drive or flash drive with at least 1GB of free disk space to hold the Recovery drive

You can download Lion Recovery Disk Assistant now (direct link) or check out Apple’s support page for the tool

Creating the Lion Recovery Disk

This is very easy, after you have downloaded the utility:

• Plug a USB flash drive or external hard drive into your Mac
• Launch Recovery Disk Assistant and select the drive
• Wait about 5 minutes to copy the Recovery HD data over to the disk

When it’s done you’ll see this screen:
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Many users who upgraded to Mac OS X Lion discovered that their Wi-Fi connections were dropping periodically for no apparent reason. We published a reasonably thorough walkthrough with tips on fixing OS X Lion’s wireless dropping issues and that’s a recommended starting point because most tips are easy and less complicated, but among those was a trick to maintain data transfer by pinging an IP address.

The keepalive ping technique seems to work, but it turns out you don’t need to ping an external IP, you can also just occasionally ping your local wifi access point. With this in mind, we’re going to create a simple keepalive script that will run from the command line and ping your router every 5 seconds, allowing the wifi connection to maintain itself and prevent a drop.

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The problem with traditional solutions like a defaults write command to show hidden files in Mac OS X is that they’re permanent unless another defaults write command is executed, this isn’t a big deal for some users but if you just want a quick glance at invisible files than busting out the command line is a pain. This is where apps like Bifocals come in, it sits in your menubar and shows hidden files when the eye icon is clicked, and hides them when it’s not. That simple.

Download Bifocals for free from Github, it’s open source if you want to peak at the code too.

Bifocals works a lot like Caffeine in that it’s activated only when clicked, there’s no other function to the menubar utility. If you are looking for a few more features than just showing and hiding files, DesktopUtility is a free menubar utility that also includes the ability to quickly show invisible files, in addition to hiding and showing the desktop, showing the user library (great for OS X Lion), and force empty the Trash.

This little app was found in our comments, thanks for the heads up!

Update: The app kills the Finder, so when you activate it your app focus may switch in the process. If you decide you don’t want Bifocals anymore, you can remove it from your menu bar by killing Bifocals in Activity Monitor, or just typing ‘killall Bifocals” from the command line. You’ll also want to remove the app from your Login Items, located in System Preferences > Users & Groups > Login Items. Ideally the developer will update the app with a simple removal tool, but until then those steps are easy enough.

You can now select any number of files from the Mac OS X desktop or a folder and create a new folder containing those selected items.

This is a wildly useful Finder trick for file management and organization, since you can quickly group a collection of files by selecting however many you want to within Finder, then quickly create a folder containing only those selected files or folders.

Making new directories of chosen files is super easy on the Mac, we’ll show you three different methods to create new folders containing selected files (or folders) within Finder on Mac OS.
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It’s unclear why, but the Mac App Store is running a lot slower in OS X Lion for some users, including myself. By slow I mean you’ll encounter nearly constant beachballs as you click from app to app, with the absolute worst offender being the main category sections.

I’m assuming there is an underlying bug or issue with the App Store backend, so a true fix will probably come from Apple to resolve this, but in the meantime I’ve found a couple troubleshooting tips that help to varying extents: deleting caches, and changing a security setting.

Delete Mac App Store Caches

I’ve had some success with deleting the caches, but over time things slow down again. Try this first because it’s the safest method.

• Quit the Mac App Store
• From the Mac desktop, hit Command+Shift+G and enter:

~/Library/Caches/com.apple.appstore/

• Delete everything in this folder
• Relaunch the Mac App Store

Turn Off Certificate Revocation List in Keychain Access

Warning: this is more of a workaround than a fix, and it creates a potential security risk by disabling the systems revocation list, use at your own risk and read all steps before proceeding:

• Quit the Mac App Store
• Launch Keychain Access (use Spotlight or look in Applications > Utilities)
• From the Keychain Access menu, select “Preferences” and then click on the “Certificates” tab
• Change “Certificate Revocation List (CRL)” to “Off”
• Quit Keychain Access
• Relaunch the Mac App Store

Things should be a lot faster now, but because of the security risk it’s recommended to then go back and change the setting after you have relaunched the Mac App Store. There are mixed reports on if the fix actually sticks around with this method, but for security reasons it is highly recommended:

• Keep the Mac App Store is still open
• Open Keychain Access again, get back to the “Certificates” tab
• Set “Certificate Revocation List (CRL)” back to “Best Attempt”
• Quit Keychain Access

This second tip comes from MacStories, which I came across when reading @Viticci’s review of the new Core i5 MacBook Air. He also complained of the slowness of the App Store within Lion, and he’s not in the USA which shows this isn’t just a local server issue either.
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