The Pantech Duo 2 C820 the successor to the Pantech Duo has been spotted at the FCC and carried over from the Duo is the slides that offer both QWERTY and numeric keypads for the heavy texter.
This update of the original Pantech Duo runs on Windows Mobile 6.1 operating systemand incorporates a 2 megapixel camera with video capture, Bluetooth and microSD.
FCC documentation also show the Pantech Duo 2 C820 is dual-band GSM/EDGE/WCDMA 850/1900, and the draft user manual offers details on services such as Cellular Video, and MEdianet, which mark the Pantech Duo 2 C820 for AT&T.
Source — phonescoop