Google Uses its Entire Computational Might to Help You Find Your Phone
Unless your phone is grafted onto your hand, at some point you will misplace it and then will need to recruit an army of helpers to help you find it. If there is no handy army to recruit Google offers to let you use desktop search and the might of its data centers to help you locate it within 24 meters on a Google map plus it will even offer to make it ring for you. All you need to do is make sure you have the Google Android app updated to its latest version: http://goo.gl/pDb1D
Neat hey? Yep! It's free, it's cool and when you misplace your phone or even leave it behind at a friend's house, invaluable.