I've been a subordinate of my mom's family plan since we switched to AT&T many years ago. It's just been easier to stay on her plan (and cheaper). She'll be long asleep by the time pre-orders open tonight; so I'm curious if there's anything I need that I'm forgetting. I'm assuming I need: Acct holder's name, phone number, password to login to AT&T.com, and SS#. Then I'll need my name, my number, and my SS#. Anything else? Thank you!