Ice Cream Sandwich may have been good enough for James Bond, but the Android die-hards who nabbed Sony's Xperia TL on AT&T want more. And by "more," we mean "an update to a newer version of Android." Fortunately, that's finally available.
Update: Looks like AT&T just started pushing the update over-the-air if you don't want to deal with flashing it manually. Head into Settings > About Phone > Software update to grab it.