I have an iPhone 3GS so I can't register an Apple ID on my iPhone to allow for the free find my iPhone feature on iOS 4.2. I went to the Apple store and none of their devices had the button show up that would allow me to register an account. I don't know why. It's really easy to do, only takes a minute, here's the instructions: http://www.apple.com/iphone/find-my-iphone-setup/ preferably a user like: salil123 or different numbers like that if that isn't available. Just e-mail me the user/pass if you decide to help me out. I would really appreciate anyone's help. I am a freelance director of photography in Chicago, IL so if you need any advice relating to cinematography, motion picture camera information, 3D technology, etc I would be happy to help you out in any way.