I want a 3G iPhone but I'm planning on buying one off Ebay then unlocking it (when the unlock comes out, hopefully soon). It should work with Verizon now that it's 3G, right? So lets say I have the phone unlocked and all, no I just need to get a Verizon SIM card. My current Verizon phone doesn't use a SIM card, so if I go into the verizon store, and ask for a SIM card, will they give it to me? Or should I just ask for one of those cheap free phones that I know has a SIM card?