While the Google-backed Android gang is busy building applications and trying to get new phones manufactured, Google itself has ponied up a new unlocked device for developers: the Android Dev Phone 1. Basically, it’s a “T-Mobile G1” that’s SIM-unlocked and hardware unlocked, which will let users run it with carriers other than T-Mobile. It costs $399. “The device ships with a system image that is fully compatible with Android 1.0, so you can rely on it when developing your applications,” notes Google on its Android developer Web site.