Kind of have an unusual problem. I bought a new iPhone4 for my stepdaughter. She currently is using her old AT&T phone. I wanted to set up the new iPhone4 for her before I send it to her (wifi settings, email, mobileme, etc.) Is there any way I can set up the new iPhone4 without deactivating her old cell phone in the process? I guess this is a stupid question but I have to ask because she will be without a phone until the new iPhone4 arrives if I activate the new phone and her old SIM is deactivated.... thanks in advance.