I can't remember exactly when this started occurring, but I do know is has been several OS rev.s ago. I am currently on 3.1.2 with the new carrier file. The problem I'm experiencing is the iPhone taking an abnormal amount of time to search for a cell phone signal on reboot/restarts. I have a full signal at my house. I just rebooted the phone and timed the events. From the time the home screen first appeared until the time that the iPhone started showing 5 bars and "AT&T" was 2 solid minutes. Does this seem abnormal to anyone else?