Based on a written specification, Atrix HD has a screen for 4.5 inches ColorBoost HD, 1.5 GHz processor dual-core, and will run the Android operating system 4.0 ICS.
Besides the main 8 MP camera, 1 GB RAM, 8 GB of internal memory, microSD slot, 1780 mAh battery, and only 8.4mm thick design. The screen is coated with Gorilla Glass technology and the use of Kevlar in the body such as the Motorola RAZR Droid.
There is no information about which operator will release it, but certainly Atrix HD supports LTE 4G connectivity.
source teknoup