FCC has unveiled a new Pantech device with a model number C820.
Could it be the Pantech Duo 2? Most probably. Details are scarce, but from the FCC filling we found out that the handset supports 3G frequencies, namely AT&T's WCDMA 850/1900, runs on Windows Mobile OS and comes with a QWERTY keyboard + numeric keypad combo.
That's all for now, but stay tuned for more details as we get them.