And this is why I store my contacts, calendars, and email on an exchange server. I can wipe my phone and get all my stuff back in minutes without ever touching iTunes.
Regarding your error - the iPhone is just like a computer. Sometimes it messes up and needs a restart. A slight hang once in a while doesn't mean you blow away the OS.
Regarding your error - the iPhone is just like a computer. Sometimes it messes up and needs a restart. A slight hang once in a while doesn't mean you blow away the OS.