I have one of those SIM Wafers, and it is the black colored one. I do not remember what it said on the SIM, but it was black, and very thin. I do not want to pull it out to check for fear of damaging the wafer. Anyways, if we have one of these wafers, and we upgrade to the 3.0 once it has been jailbroken, the iPhone should just work right off the bat correct? Or do we need to buy a special 3.0 wafer?