A new device from HTC called the PB81120 showed up on the FCC today.  The device sports GSM 850/1900, and WCDMA IV bands, which correspond to T-Mobile’s service in the US.  Test reports for the device also show 802.11 b/g WiFi, GPS and Bluetooth features.

We don’t have any more info on the PB81120 yet, but we’ll keep you updated as we learn more.