Okay so basically: I sold my iPhone before WWDC. Bought another after WWDC. Connected to iTunes. iTunes asked for cell number and SS number (after restore.) Opened ZiPhone. Activated, Jailbroken, Unlocked. Synced my iPhone. I'm on AT&T in the US. Was it normal that it asked for my number and SS number? Or does that mean I'm not supposed to use a different iPhone with my old SIM card. Will the same happen if I upgrade to 2.0 and I won't be able to use my iPhone? Thanks.