Anyone heard of an issue like this?: Updated 32GB 3GS to iOS 5(.0.1), baseband 5.16.05. Now the device reboots periodically. The frequency varies. Sometimes it reboots every 10 minutes and at others it lasts only a minute after powering up before rebooting again. Can't sync via USB because there typically isn't enough time before a reboot occurs. Tried draining the battery fully and recharging as well as a hard reset. Advice/suggestions?