Hello All, My step father is upgrade elibilge on his line with AT&T and he is allowing me to take advantage of this to purchase an iPhone 4. I was planning on purchasing the phone via the Apple store and then jailbreaking it for my T-Mobile service. I've done some research and realize all the parameters involved. Will Apple have to activate the phone on the spot for the new micro-SIM? How can I do this without much interruption with re-activating his old sim to his old phone? Has anyone done this before? Any tips or tricks anyone can offer will be much apprecaited. Thanks!