According to the folks over at BriefMobile, the Atrix 4G is going to be finally updated to Gingerbread sometime in July. There's no exact date yet, as software versions are still being tested by Motorola and AT&T. However, based on one of those tested versions, a release should happen quite soon, since there don't appear to be many bugs or things to be ironed out left.
That's certainly good news for Atrix 4G owners, who've been craving the update ever since the phone was announced. The update will bring such nice features as sideloading (as per AT&T's new policy on the matter) permitted, overscroll glow, app grouping, a download manager, improved camera app, better power management, a new keyboard, and new animations.
source: Unwired View