I have had two 3G iPhones so far. The first one was all messed up and I returned it on Sunday and got a new 16gb 3G iPhone. This ones seems to work perfectly, but I have a question that I hope someone can shed a light on. When I have my iPhone connected to iTunes via PC... I will download an App from the App Store. It downloads fine with no problems whatsoever into iTunes. I will then go ahead and Sync my iPhone to install that App into the iPhone. It shows it completes the installation and then my iPhone shuts down and reboots. It then takes longer (5-8 minutes) to reboot than it normally does. This happends with ANY and ALL apps I try to install. Doesn't matter if it is a game, productivity, health, or whatever. It does this whether I install 1 app or 5 apps. Does this happen to everyone? Is this normal?