Google engineer Jean-Baptiste Queru announced the news in a forum post, in which he said that the 'android-4.1.1_r1' source code is now available for all developers to download from the Android Open Source Project (AOSP).
Android 4.1 Jelly Bean was announced at Google’s I/O developer conference in San Francisco last month and is set to launch on Google’s Nexus 7 when the tablet tips up from the middle of the month.
Google says that the OS will also come to Motorola’s Xoom tablets towards the end of July, although if upgrades to Ice Cream Sandwich are anything to go by, some products may receive the Jelly Bean update later than others.
Prominent features of the new OS include the new “Project Butter” UI, voice dictation, widget resizing, a new camera app and Google Now, which impressively serves up useful information to you based on what you often search for.
Jelly Bean adds to an already seriously fragmented Android sphere in which Ice Cream Sandwich sits on just 10% of Android devices, despite being launched nine months ago.