I am selling my original iPad + 3G. I've deleted my data account, restored the iPad and wiped all data on it. Now the question of the SIM comes into play, a number of Internet searches are bringing up varying results - some people say remove it, some say keep it in the machine. I called up AT&T and was connected to a tech, who told me that it was like a phone and that I should remove it. But he didn't sound like he knew what he was talking about - putting me on hold, reading from technical manuals. Can anybody finalize this issue for me? I am leaning toward removing the SIM since I am used to doing that on phones I sell but if it'd probably make the transition easier for the prospective buyer if they could just start up and go without having to travel to an AT&T store to get a new card. TIA.