AT&T has announced that the Android 4.0 Ice Cream Sandwich update for their Motorola Atrix 2 customers is now rolling out, bringing the device up to date with the not so latest version of Android after almost a whole year of waiting.
As expected, the usual Ice Cream Sandwich features and improvements will be added by the update, such as a new interface, hardware acceleration for apps, faster browser, improved notifications menu, new lockscreen with a direct shortcut to the camera, messaging, and phone dialer apps, face unlock, advanced mobile data usage management. and overall faster performance throughout the OS.
You should get an automatic notification about the update, else you can also check for it manually from the Settings » About phone » System updates menu on your Atrix 2. Note that you will have to be on a Wi-Fi connection in order to update.