After putting up the accompanying support documentation yesterday, Verizon just announced that the Android 4.1 (Jelly Bean) update for the Galaxy S III will be rolling out within the next week, making it the last of the major carriers to apply it. The update will start pushing to devices tomorrow, December 14th.
The update includes Google Now, expandable notifications, ISIS mobile payment support, an enhanced camera app, and more. You can find the details on the Galaxy S III support page. Oh, and it unlocks the microSIM, so you can use your VZW GS III on any GSM carrier worldwide.