I'll be selling my 3G iPad after the March 2nd announcement... if it means I lose a little more value. I'm on mine too often to be without. My question is about the SIM card though in the 3G model. When I sell, should I keep my SIM card so I can pop it into the new one and keep on truckin' or is it that simple? I've never done this before (with a phone or otherwise). If I do keep the SIM card, how does the buyer go about activating? Will the AT&T store happily give them a new one or? Thanks in advance for the help. I appreciate ya!