While the AT&T Galaxy S III received its Android 4.1 update way back in December 2012, it still had yet to get the Samsung "Premium Suite" upgrade with the much-vaunted multi window feature. Starting today, that update is rolling out - a full two months after even infamously-slow Verizon managed with its own S III. Better late than never, I guess.
Here's AT&T's brief changelog:
Software update includes
Multi Window: You can open two different apps at the same time into two different windows on the mobile screen.