Originally Posted by biawhiska:
“4.2 just come on my nexus. What changes are there?”
Photo Sphere panorama photos
Keyboard with gesture typing
Lockscreen improvements, including widget support and the ability to swipe directly to camera
Notification power controls
"Daydream" screensaver, showing information when idle or docked
Multiple user accounts (tablets only)
Support for wireless display (Miracast)
Accessibility improvements: triple-tap to magnify the entire screen, pan and zoom with two fingers. Speech output and Gesture Mode navigation for blind users
New clock app with built-in world clock, stop watch and timer
All devices now use the same interface layout, adapted from phones on 4.1 for smaller tablets (with centered software buttons, the system bar at the top of the screen, and a similar home screen), regardless of screen size
Increased number of extended notifications and Actionable Notifications for more apps, allowing the response to certain notifications within the notification bar and without launching the app directly
SELinux
Always-on VPN
Premium SMS confirmation
Phone-like launcher for small tablets in Android 4.1 extended to larger tablets, as seen with the Nexus 10