Google devices rejoice, Android 4.3 is here. If you have unlocked your bootloader, then you should be able to get it installed into your phone sooner than later via custom ROMS, I am hoping ViperOne releases a 4.3 iteration. Some of the improvements are below.
Muti-User Restricted Profiles
This builds on the multi-user accounts on 4.2, but adds Restricted Profiles. These make it possible to do parental controls on the tablet, by changing the performance of apps and other services based on who’s logged in. It also blocks out access to stuff like in-app purchases. There’s much more to this than just parental controls, however, including options for provisioning in enterprise settings.
Bluetooth Low Energy (Bluetooth Smart) makes it easy to connect accessories to Android devices without sapping too much battery. This is key for smart watch and other wearables, as well as health and fitness trackers.
This is huge for game developers, as it allows for much better graphics rendering, which shows off very well in the demos Google showed off on stage. Now we can also see lens flares a la J.J. Abrams, and other very nice visual effects on future games. All of the above is rendered in real-time in native 1080
You now can access and interact with notifications form the Android status bar, and use those to be displayed in another app or via Bluetooth on a connected device (like the Pebble) and you can change their read status and dismiss them, too.
So if you have a Nexus device, start checking for a system update!