I am planning on upgrading from the itouch to the 3g iphone and would like to jailbreak it. I have jailbroken my itouch (awhile ago) so I'm pretty sure i can jailbreak the iphone. My question is do i have to remove the SIM card before jailbreaking? Can the phone be activated (from AT&T) first before jailbreaking it? Thanks in advanced for your help and sorry if this is a dumb question.