I got my iPhone replaced last night, but I haven't registered it or anything. I hooked it up to iTunes so that it could make calls, but that's it. In fact, I can't even get to the point where I can restore it without registering it on iTunes (it seems). Should I just take the SIM out and sell it to the guy as is, or is there something I need to do to make sure he doesn't get any of my info. Is there even any of my info on the phone yet?