Hello Everyone, I would like to Forward The Calls from my wifes iPhone 3G to my 3GS while I update her phone to 3.0. I know how to foward her calls to mine already, the question is when I'm done with her phone will it activate and will I be able to turn the forwarding off?? I know it wont take that much time to do it , but she cant miss ANY calls while Im doing this...Both phones are on AT&T...