The best laid plans of Motorola may be in disarray, as we hear the device manufacturer is shuffling release dates for its hottest new Android devices. Supposedly, AT&T customer service reps are getting the above message in their inbox, which suggests the modular Atrix 4G smartphone may arrive more than a week earlier than planned, while a Best Buy memo (image after the break) pegs Xoom tablet pre-sales for February 20th, three days after the date originally communicated . Still, we haven't heard anything to suggest that the Xoom won't be 100 percent ready for purchase on February 24th , so you should be just fine saving your eight Benjamins for then.[Thanks to everyone who sent this in]