Posted by: Brett
Android 4.2, build, JOP40C, has started rolling out to the GSM Galaxy Nexus and Nexus 7, bringing features found on the new Nexus devices. Android 4.2 includes user accounts for tablets, Photo Sphere image-taking, Daydream mode, lock screen widgets, and more. Also, Google has sent OTA updates to pre-release Nexus 4 and Nexus 10 devices bringing it the finalized version of the software, giving the former lock screen widgets.
Android 4.2 is currently available through AOSP as well for your downloading pleasure. It’s important to note there are no binaries for the Nexus S or Motorola Xoom, suggesting Google has opted to halt further software support for them.
Source: Google Developers