I'm unfortunately still having this problem, as is my wife on her Droid 2. Rebooting fixes it, but the problem returns every time I leave wifi. That is, the 3G icon will show up on the notification bar, but I end up with no data connection.I finally got this installed. Unfortunately, I turned off wifi, and lost my data connection. I toggled airplane mode, still nothing. I am rebooting now. This seems to be the same problem i had on previous builds.