Sony Ericsson recently announced their upcoming Z780 handset. Compared to its predecessor, the Z770, this phone supports tri-band HSDPA 850/1900/2100 and quad-band GSM/EDGE frequencies.
This model is a flip-phone, its dimensions are 95.0 x 48.0 x 17.0 mm (HxWxD) and it weighs 96 grams. It packs a 2 megapixel camera which can record video, a forward facing camera for video calls, an FM radio reciever, Bluetooth 2.0 with A2DP support for stereo audio, as well as integrated GPS with Google maps. This phone also features a slot for Memory Stick Micro (M2) cards.
The Z780 will be AT&T 3G compatible and should be available from various mobile network providers fairly soon.