The G1 is loaded with T-Mobile firmware. It has features that will only work with T-Mobile's data plans. This phone is not the G1. It's an android developer

The G1 is loaded with T-Mobile firmware. It has features that will only work with T-Mobile's data plans. This phone is not the G1. It's an android developer phone with it's own (replaceable) firmware. The features it provides are listed on the Android market site http://www.android.com/market http://www.android.com/market (login required).