JB versionJRO03O and radios i515.10 vFF02/ I515. FG02
The developers i know who have been using this versionof JB and new radios report everything seems to be working great no lost signal or dropped calls
looks to be ready for primetime now we need verzion to push to all . But i suspect S3 will gt JB first
This is an official OTA but only released to those who had 76Q ICS.
With a little research you will see how well it works