Hi all, I'm going to finally be leaving ATT after signing up with them with the first iPhone. I'll be switching to Verizon when the iPhone pre-orders open up. My question is, can I sign up for a Verizon phone through the Apple Store on pre-order night using my same phone number? should I sign up for Verizon prior to buying the phone? Just not sure the order of operations as I would like to get my order in for the new phones before they sell out for months. Thanks for help!