As last year Google promised to launch the Ice Cream Sandwich OS in year ending, now Google is ready to release the Android 5.0 (Jelly Bean) OS on 5th November 2012.
One of the reason to launch Android 5.0 JB Android OS is that the year 2012 marks 5th birthday of Android OS so Google plans to launch the JB to celebrate its birthday. The second reason to launch the new OS is present a gift to Android fans because Google want to leave a greater impact on its fans from year 2013.
Google also paying attention towards iPhone 5 which is also coming in this year end. Jelly Bean could give apple a tough competition And Google could hope to scoop the new mobile operating system from Microsoft Windows Phone 8.