Earlier today, Google started rolling out the Android 4.2 Jelly Bean update for the Nexus 7 and the takju variant of the Galaxy Nexus i.e. the handsets that were purchased directly from Google via the Play Store. .
The Android 4.2 update will bring with it quite a lot of minor yet much-appreciated changes including quick settings in the notification bar, multiple user profiles for tablets, an updated Clock app, Gesture typing for the keyboard, pinch-to-zoom in GMail and much more.
Google is rolling out the OTA update only in certain regions of the world and to limited number of Nexus 7s and Galaxy Nexus out there, so don’t expect the OTA update to be available immediately for you. The final OTA update also includes lock screen widgets that was missing in all the Nexus 4 review unit.
Google usually keeps a new version of Android exclusive to the Nexus handset for a couple of weeks before it pushes the update to other devices and the code to AOSP. However, this time Google has decided otherwise, and pushed the Android 4.2 OTA update on the same day it released the Nexus 4 in a bunch of countries.