Hi,back again ,presenting the new version of the robot that made the smartphone world occupied by Microsoft and BB go upside down,yes i m talking about the Android  and the new version of it recently unveiled by the Google

Smooth, fast UI response.
The new predictive keyboard is another solid upgrade
Excellent overall performance.
Search and Notification updates huge improvements.
Offline voice dictation and maps
Plenty of minor upgrades
are the striking points of this new OS
Trust me once you get to it you don't feel like leaving it for a second its ultra-smooth in use plus an upbeat in performance is an icing on cake.

Although it also has some negative points like

Browser has trouble with page formatting.
Google Now doesn't work well enough yet. (well not exactly a negative one as its new so a update is expected to fix it)
Seeing response to ICS upgrade schedule for new and existing devices is a huge question mark

As quoted by PCMag.com that Bottom-line is :
Android continues to mature with Jelly Bean, a smooth, surprisingly comprehensive upgrade to Ice Cream Sandwich that cements the smartphone platform's top-tier status.



A in depth  review and video by PCMag.com is here