Google Android Dev Phone 1 : Unlocked G1
 

Google is releasing an unlocked G1 for developers for $399. You have to be registered as a developer which costs another $25.
Its called Dev Phone 1 instead of G1 but looks to be the same phone.

http://code.google.com/android/dev-devices.html

http://www.engadget.com/2008/12/05/s...faces-for-399/