Last Updated: November 14th, 2012
The new Nexus devices just went live, and, as promised, Google has simultaneously started pushing the code for the latest iteration of our favorite mobile OS - Android 4.2 Jelly Bean - to the Android Open Source Project. Jean-Baptiste Queru, chief Android release engineer, announced the news via a post to the Android Building group.
Update 11:22am: Android 4.2 source just finished replicating to AOSP. "The platform source files for 4.2 have finished replicating, you can now sync." -JBQ
The build number is JOP40C, while the AOSP tags is android-4.2_r1.
Last Updated: October 13th, 2013
On the heels of the Android 4.2 dump from the Nexus 4, today we have a slightly updated version of the Google Play Store with version 3.9.17 that follows the previously released version 3.9.16.
Upon closer inspection and analysis, I found a new set of XXHDPI 144x144px icons for tablets with similar to the Nexus 10 high density as well as some changes to the code for recommendations and Play Store widgets, though I couldn't pinpoint the exact differences in those.