Today’s startup won’t stop your bitches and hoes from running away, but it WILL keep track of your keys and cellphone!

Phone Halo is a combo physical device + application for your Blackberry, Android, and (soon) iPhone.  The idea is pretty slick: the bluetooth device periodically talks with your mobile phone.  When they get separated — the phone makes note of it, and records the GPS coordinates.  So if you lose your phone OR your keys, it will alert you as to exactly where.

The device sells for $59.95, and the application is free.  It weighs only one ounce, and can be easily slipped on your keychain.  Plus, the device has a little “alert” button that makes your phone ring.  How cool is that?