Heads up, C Spire Wireless customers, because it looks like your Samsung Galaxy S III has finally been added to the guest list of Club Jelly Bean. C Spire has revealed in its official forums that the Android 4.1.2 Jelly Bean for its Galaxy S III is now going out over the air in phases. Customers can check for the over the air update by heading into Settings > About phone > System updates. Alternatively, C Spire says that users can grab the update using Samsung's Kies software on their Mac or PC.

Once the update dust settles and C Spire Galaxy S III owners are on Jelly Bean, they'll find the usual JB goodies like Google Now and expandable notifications as well as some new preinstalled apps, a handful of new widgets and an increase in MMS message size to 1MB. The full changelog for the L710WWMB3 update is available at the bottom of this post.

C Spire's Galaxy S III is just the latest in a line of U.S. carrier-branded S III models to be bumped up to Android 4.1, and as with the other updates, this is definitely something that C Spire customers will want to jump on as soon as possible. Not only are there quite a few new features for S III folk to tinker with, but the move from Android 4.0 Ice Cream Sandwich to Android 4.1 Jelly Bean ought to make the using the phone an all-around smoother experience thanks to Project Butter. Sound good, C Spire Galaxy S III owners? Then get to updating!

• Android 4.1.2 with faster, smoother user interface throughout
• Swype keyboard preloaded
• Google Now http://www.google.com/landing/now/
• Expandable notifications and smarter widgets
• Enhanced camera features
• Blocking mode
• Home screen mode (easy and basic modes)
• Added Apps
  • Chrome
  • Help
  • Paper Artist
  • Voice Search
• Added Widgets
  • Bookmarks 3x2
  • Favorite Apps
  • Favorite Contacts 4x2
  • Favorite Contacts 4x4
  • Favorite Settings 4x4
  • Messaging
  • My Call Sound
  • Play - My Library
  • Play Recommendation
  • S Bookmarks 3x2
  • Simple alarm clock
• Streaming 4G (audio and video) messages delay fixed
• MMS maximum size now 1MB
• Samsung S Voice upgrade
• Polaris view app upgrade
• MusicHub 3.0 app upgrade

Via Android Central, C Spire Wireless