I added another phone to my ATT account. So now I have 2 lines. Line one is my iPhone. Line two is my blackberry.
Just for the fun of it I just yanked out the blackberry sim and put it in the iPhone. It worked. No problems. No error messages. Just a normal working iPhone.
I've not done any hacks or cracks or anything like that. Did something change after the update? Has anyone else noticed this?