Google I/O 2012: Ice Cream Sandwich has been out for around six months now, and Google have taken the stage at Google I/O to announce Android 4.1 "Jelly Bean". It was previously rumored Jelly Bean would be Android 5.0, but then rumors were flying in that version 4.1 would be Jelly Bean, it looks like the latter rumors were right.
The shift to Jelly Bean from ICS isn't as grand as the Gingerbread to ICS shift was, but this time its more of an evolution, and not a revolution. One of the best features is something Google call "Project Butter", which is an effort to improve performance and response time, Jelly Bean cranks along at 60fps. This should ensure a very, very smooth experience.
Jelly Bean's home screen has been modified, with Google adding some nice features such as the ability to dynamically resize widgets, which means you no longer have to place it, resize it, then move it where you want if there wasn't enough room. If the room is there, but your app icons are sitting in the way, the widget will now automatically push the apps to the side. Apps and widgets can also be removed by simply flicking them off your screen.