This is apparently PR1.1.1, and it has a few minor fixes, but apparently has picture posting for twitter. Only available on MEA (Middle east and Africa) variants for now, it seems. Details: http://mobility.com.ng/2011/12/07/my...11-40-4-pr1-1/ You're free to attempt to flash your device with it, but I wouldn't recommend it. If it's successful, and you have issues afterward, you won't be able to go back to PR1.1 EDIT: Looking at the release notes, it looks like the twitter and other app updates are being pushed separately, PR1.1.1 is soely to add Arabic VKB support.