Upgraded last night using devteam JB via installer.
All working lovely apart from locate me in google maps.
Then tonight 24 hours later I pressed the installer icon and it started to refresh the sources, I decided I didnt want to wait and pressed the home button.
Its crashed and looping and rebooting.
I upgraded from a 1.1.2 JB phone.
This isnt stable and going back to 1.1.2.. Something isnt right and sugguest people be careful.