If you happen to be carrying a T-Mobile branded Galaxy S III and are willing to go the way of leaked ROMs — you can now update to Jelly Bean. It seems the ROM has recently shown up on the XDA forums. Those interested will be able to update to Android 4.1.1 Jelly Bean with build number JRO03L. It was noted that you will need to be running the stock/default ROM for this leaked ROM to install properly, but otherwise, the process appears to be simple enough. The files are all available on the XDA forums and note that you will need to download the ROM to your device then apply the zip in the recovery menu and then begin enjoying Jelly Bean. That said, those who are already confused about how to ‘apply the zip in the recovery menu’ — it may be a good idea to wait for the official release from T-Mobile. Otherwise, enjoy and proceed at your own risk.