I have an iPhone that works geat, but here's my question. I'm in the US Army and about to deploy. So I'm going to call AT&T and have my account put on hold while I'm gone. I plan on taking the phone to use as an iPod, game console and interne browser (wifi). What happens if I need to restore it? Will the SIM card I have, that will be on hold, work during the activation process with iTunes? I have it jailbroken now, is there an app I should look for? Any help you can give would be greatly appreciated.