Today FCC just passed another unknown Motorola phone ( IHDP56KC6) with AWS 3G bands ( 1700/2100 ) same as T-Mobile uses. Maybe this is going to be a second Android phone from Motorola to T-Mobile
The new Motorola phone will features:
Quadband GSM/EDGE 850, 900, 1800 and 1900
HSDPA/HSUPA up to 10.2 Mbps,
Bluetooth 2.0 with EDR
Battery model BP6X / SNN5843A / 1390 mAH (same as Droid and Cliq)
So far those are the only specifications we can find. Stay tuned for more information about this phone.