Google's making it even easier
to track down your misplaced
mobile device. While Android Device
Manager already exists to help find lost
phones and
tablets, just getting to your account's ADM menu often
requires a search of its own.
But Find My Phone is as simple
as a web query. In fact, that's literally
what you're doing.
Simply open a Google omnibox and type "find my phone" to display a
map that reveals the
phone's current resting place. If the
device is nearby, you can also opt to
ring your cell.
Unfortunately, Find My Phone does not allow you to lock or
erase your device should it be
stolen or, say, left at the local
pub -- you will still need Android Device
Manager to do that.

SOURCE: Google+