We all know about that the Motorola ATRIX 4G (AT&T version) bootloader have been unlocked by Motorola on June, after two months, the first third party rom for ATRIX 4G was released, it is a pre-beta rom based on CyanogenMod 7. Some features will work and some won’t, it is a begging, if you can’t wait for the official rom release and want to give it a try, here is the Nandroid backup download page at ModMyMobile.CyanogenMOD 7.1 for Atrix Pay attention, it is a experiment rom, and your ATRIX 4G must be AT&T version.
Calls and SMS
Internal Storage and External SDCard
Multimedia Playback (videos, music)
NOT WORKING AND/OR HEAVILY BUGGY:
Probably everything else that wasn’t included in the working list