Google confirmed Android 5.0 to launch this year

At Mobile World Congress taking place in Barcelona, ​​Google has officially confirmed the information will be released on the next version of Android in late 2012. However, the Google declined to give specific information.

Hiroshi Lockheimer, technical vice president in charge of Google's mobile phone, said the company has been preparing plans to release the next version of Android will be released in 2012, but did not give a specific release date.
Hiroshi Lockheimer said: "After version 4 will come Android version 5 and we still can not give a specific notice period by a lot of work behind the technique is still in progress." He also said that Google will give a small update before the official launch.
Android 5.0 so can not be released until the fall, but we'll see updates as Android 4.1 will be available for users to download version 5.0 before the official launch.

Android 4.0 Ice Cream Sandwich has been launched in 11/2011 and so in same time frame of this year, maybe Google will release the next version of Android. One thing is almost certain that the release of the next version of Android will be called the Jelly Bean.
In fact, the images appear in Google's booth at MWC 2012 is that it is the image of the next version of Android.
Earlier also rumors that Google plans to release Android 5.0 in the second quarter of the year and is designed to optimize the tablet. A similar rumor appeared in December and announced that the new operating system called Android 4.1.

Google Video's booth at MWC 2012