Update: Right on time, it looks like US Cellular's 4.1.1 update for the Galaxy SIII is available to users, and their software page has been updated to reflect the SIII's new firmware (which, for those curious, carries base band version R53OUVXALK5).

Samsung Updates also has the SIII's latest firmware available for download here. For instructions on updating your SIII, just hit the US Cellular link at the bottom of this post.

Original Story: If you're a US Cellular customer toting around a Galaxy SIII, you can expect to get your hands on Samsung's TouchWiz-coated Jelly Bean update for the device starting this Friday, December 21.

Announced in an official press email, the update brings the SIII to Android 4.1, and carries Jelly Bean enhancements we've all come to know and love like Google Now, rich notifications, and others along with Samsung's own TouchWiz tweaks. Here's a quick look at the Samsung-specific enhancements users can expect:

Samsung refined and enhanced the Galaxy S III experience by adding new capabilities to the camera, video and user interface, including:

Instructions for updating your Galaxy SIII – either via KIES or over the air – will be available at US Cellular's own update page (linked below) starting Friday. For more information on the update, head to Samsung's standard Galaxy SIII Jelly Bean press release below. Otherwise, sit tight – the wait for Jelly Bean is almost over.

Source:  US Cellular, Samsung PR