iOS 4.3 could not activate cellular data network

iOS 4.3 could not activate cellular…: Apple Support Communities. I had a friend who had this problem today on her iPhone 3GS. I did the standard troubleshooting things the first person on this thread did. It didn’t seem to solve the problem. I turned the phone off for a minute and then turned it back on. That seemed to solve the issue.

Interesting. I was preparing to call AT&T and see if this was a carrier issue. This happened after using an iHome speaker for the first time today. Has anyone else noticed this?