I got 4.1 today in the UK and it's totally wrecked my SIM-free One X.
I can't answer calls, the keyboard has disappeared so I can't email or text, my call history has gone, so has 90% of my Contact data.
Can I roll back to 4.0.4?
Help!
Moved your queries to their own thread here: http://androidforums.com/htc-one-x-xl/655603-jelly-bean-arrived-today.html