Android 4.2 may enable multiple user accounts

Multiple user account logins may be announced at Google's Oct. 29 event in New York City, giving further credence to its "the playground is open" RSVP tease.
Families, workgroups and anyone who shares an Android-powered tablet would benefit the most from this highly requested feature.
The real surprise would be if Google combines being able to log in to a personalized account on a shared device with being able to use Face Unlock - a feature introduced in Ice Cream Sandwich.
None of this is a guaranteed for Android 4.2. But leaked system code picked up by Android Police strongly hints at the existence of multiple user accounts for a future OS update.

New Nexus tablets, phone to use Android 4.2

Android 4.2 announcements like multiple user accounts and a double notification bar are expected to be joined by several Nexus-related hardware unveilings.
Two larger capacity Nexus 7s are on the way - a 32GB WiFi model and a 3G model that's the same size. This isn't surprising considering the 8GB and 16GB Nexus 7 tablets are selling so well.
What's more, rumors of a Google Nexus 10 from Samsung are at a fever-pitch, so an announcement seems imminent for next week. The same holds true for a new Android phone from LG - the LG Nexus 4.
All of these software and hardware announcements should help Google distract from tomorrow's expected iPad mini announcement and the rumored Nov. 2 launch of the new Apple device.