The Nokia Ace for AT&T is going to be revealed next week at CES 2012. Some more details have surface regarding this much rumored device. Unfortunately the device will run on the Mango version of Windows Phone and will not have the Tango update. The device will be sold globally as the Lumia 900 and as the Nokia Ace for AT&T. The device is suppose to be carrier locked for AT&T however it will also support T-Mobile's 1700 mhz 3G band.
The specifications of the Nokia Ace are:
Along with his device a mid-range device called the Nokia Lumia 719 is also expected to be announced at the event. The specifications would probably be similar to the Lumia 710.