How can I find my missing iPhone? Find your iPhone now

Can’t find your iPhone? We’ve all been there, it gets misplaced or falls between the couch cushions. But hey, no problem, just go to http://www.icantfindmyphone.com/ and enter your phone number. It’ll ring your phone free of charge, so you can track it down. Of course, if you have the iPhone on vibrate it’s going to be a lot harder to find.
When you answer you get an automated message saying “It looks like you found your Phone, have a great day!”
This isn’t quite as powerful as the service offered by Apple through MobileMe that uses the iPhones built-in GPS to track down the device, but hey it’s better than nothing (plus it’s free). If you’re in a bind, try it out.

and what is the website going to do with my phone number after they get it?
It’s obvious that users of this service would be lonely individuals without one friend or family member that can ring their number…
If you do want the same GPS tracking features as MobileMe but without the high price, check out http://findurphone.com
Works *without* an app, just like MobileMe