Hello all, Sorry if this has been posted somewhere before. I searched the forums and did not see this question asked prior... Anyway, I currently have a 3Gs and would like to sell it to get some extra cash for IP4. However, I'm being realistic and I figure I may not get my hands on one until the second week of July. Is it possible for me to remove the SIM card in my 3Gs and put it into my 1st generation iPhone without any issues? I tried this last night and I got to the activation screen in iTunes and I didn't want to eff anything up so I just backed out. Has anyone tried this before? Thanks!