Sprint's support site just shared yesterday that the Jell Bean Update has started rolling out for their version of the Galaxy Nexus and the Nexus S 4G. Here's a breakdown of all the changes included with the new OS.

Upgrades phone operating system to Android 4.1.1 (Jelly Bean)
  • Smoother user interface
  • Enhanced Accessibility functions
  • Bi-directional text and other language support
  • User-installable keyboard maps
  • Expandable notifications
  • Ability to turn off notifications on an application specific basis
  • Shortcuts and widgets can automatically be re-arranged or re-sized to allow new items to fit on home screens
  • Android Beam Use Android Beam to Bluetooth transfer data
  • Offline voice dictation
  • Improved voice search
  • Improved camera application
  • Google Wallet (for the Nexus 7)
  • High resolution Google+ contact photos
  • Google Now
  • Multichannel audio
  • USB audio added for external sound Digital to Analog Conversion
  • Audio chaining also referred to as Gapless Playback. Gapless playback is the uninterrupted playback of consecutive audio tracks

Discontinuing support for Adobe Flash Player:
  • Adobe will not be certifying the Adobe Flash Player for Android Mobile devices that either release with or update to Android 4.1 (Jelly Bean).
  • Devices that upgraded from Android 4.0 to Android 4.1, may exhibit unpredictable behavior, as it is not certified for use with Android 4.1. Adobe recommends uninstalling Flash Player on devices which have been upgraded to Android 4.1.
Sound off in the thread if you have received yours already.

Source: Sprint