So just this week, I got out my original iPhone for the first time in a year or two. I haven't touched it in probably a solid year. Well I brought it out, replaced the battery this week and have been using it a little bit for nostalgia's sake. It was jailbroken and unlocked but Cydia wouldn't update properly on it and it was all buggy so I just decided to restore it. It was already on 3.1.3. I stuck it in iTunes tonight to restore it but now that it's restored it's got me stuck on the AT&T activation thing trying to either replace a line on my account or set up new service with AT&T. This didn't even dawn on me that this might happen (though I guess I should have seen this coming). I don't want to add this phone to my AT&T account and I don't want to replace my iPhone 4 on the account with this one (obviously), but I do want to be able to use it just to fool around with and/or for an iPod or something. But I'm seemingly stuck here. Tips/help? I thought about sticking my iPhone 4 SIM in there (I have a SIM adapter), but I didn't know if that might somehow "cancel" my iPhone 4, so I didn't try it.