Apple is successful because they sell an experience
Why is Apple so successful? Look at what, and how, they sell.
* You walk into a beautiful Apple Store
* You’re presented with amazingly attractive machines
* The packaging is clean, minimal, and enticing
* The operating system is simple to use yet amazingly powerful
I came across a post simplifying this on MinimalMac and found myself completely agreeing. Buying an Apple product, especially a Mac, is an experience from the start to the finish.
It’s an experience I’ve never been able to replicate when buying a PC, which typically comes from a loud and generic electronics store with product overload, and that sensory overload never ends: open the PC box and you have stacks of paper warranties and user manuals, various driver disks, promotional offers for this and that, a ton of cables and cords haphazardly thrown in a box. Then you finally boot the thing up just to be overwhelmed with a Windows install that has been bloated up a storm with OEM garbageware and 20 icons on your desktop… there is just no comparison, you don’t get that from Apple and you never will.
This is exactly why they’re so successful, Apple just gets it.
Now, MinimalMac does a more elegant job of telling the story than I do via fewer words and a few pictures, so be sure to scroll through them, it’ll only take a second and for four pictures, it does a good job of capturing the Apple buying experience.
FileMerge lets you select any two files and it will compare the two, pointing out any differences between the files. If you’re a developer you already know why this is wildly useful, as it makes tracking down major and minor code changes remarkably easy. Apparently FileMerge is a survivor from the days of NeXTStep, and once you see how useful it is, you’ll see why it was saved and bundled with XCode. If you’re a developer and you haven’t found out about FileMerge yet, you are missing out on one of the more useful apps included within Apple’s XCode installation. 
Converting various filetypes can be a total pain, especially when you don’t know how. But converting file formats is often a necessary task, required for many reasons from preference, to increased compatibility with another Mac, to working with an iOS device or PC, to compatibility with another app, even another operating system entirely. Fortunately, OS X Daily has covered a lot of file format conversions in the past, so here’s a helpful list to get you started. 
If you plan on developing or designing for the iPad this could be very valuable to you, the folks over at teehan+lax have created a fantastic PSD file of the iPad’s GUI elements, all arranged quite well. 
You can use your iPhone as an external USB flash drive using this (currently) free software from myPodApps. Called iPhone Explorer, it’s a simple and lightweight program that lets you browse through your iPhone through it’s interface which works pretty well as a file manager. You can rename, create, delete, drag and drop, both files and folders on the iPhone using this app.
Would you prefer to use the keyboard to speed up navigation around your Mac? That’s what the Full Keyboard Access setting allows for. Using a Keyboard option, you can have the Tab Key able to switch between dialog buttons, fields, screen items, controls, and anything else in a dialog box within Mac OS X. This can greatly enhance the speed at which you use your Mac, but it’s a feature that Apple has never chosen to enable by default. Additionally, tab key navigation can be a very helpful setting for accessibility purposes, since it’s often easier to leave your hands on the keyboard than move around a mouse or trackpad.
While everyone continues to wait for an official Hulu app for the iPhone/iPod Touch/iPad/whatever, you can beat them to the punch and get Hulu content on your iPhone now for free, using Snow Leopard! 
