In the Android market daily there are millions of activation happens as per the Google I/O 2012 event report says.Now in the market most of the mobile comes with ICS and some of the mobile which is expected the ICS upgrade.So as of now its pretty difficult to release the Android 4.1 software based mobile.But still Samsung announced that Samsung Galaxy Nexus, Galaxy Nexus s will be released with Jelly Bean version.But date has not yet announced.
The Motorola also announced that Motorola Xoom will come with Jelly Bean version of Android 4.1. These are mobiles soon available in the market with latest Google Android 4.1 Jelly Bean version. But initially Jelly Bean version will have some initial release bugs.So better wait and watch then buy attitude is best in this scenario.