Google intros Android Device Manager to help you find that missing handset
Source: http://www.engadget.com/2013/08/02/android-device-manager/
Frequently lose your phone? Yeah, join the club. Don't worry, Google's got a fix. Android Device Manager will be available later this month for phones with 2.2 or later, letting you ring your phone at maximum volume when you can't find it, even if the handset has been silenced. Should that fail, you can also locate the thing on a Google Map in real-time -- and there's also a plan C. When you're all out of other options, you can securely erase all of your data from afar, so your Angry Birds scores don't wind up in the wrong hands.
Source: Official Android Blog