Find your iphone to itouch with iOS 4.2
Apple released iOS 4.2 for many Apple devices. With this update came one shocking feature, find my iphone. This feature was not free before. In the past,it was $99 with a Mobile Me account. Apple now includes it with iOS 4.2. In order for this to work, you must have iOS 4.2 and an iphone or itouch. Here is how to enable this feature.(You do not need a MobileMe account).
1)Tap over to Settings > Mail > Add Account >and tap MobileMe.
2)Now, enter your Apple ID and password.
3) Turn on "Find My iphone"
After this you should be all set. You can go to www.Me.com and log in. You should see the location of your iOS device.