Perhaps a stupid question, but I'll ask anyway -- I'm gonna be traveling out of state on Friday. I'll be in reach of both an Apple and AT&T store. But that's the thing, I'll be traveling so I'll only have my iBook with me--not my desktop which is where I have my main iTunes library sync'd, etc. (though I'll probably sync that to .Mac so I can at least get my address book and email off). The question is, if I activate and sync it with that iBook...can I break the iPhone's ties to the laptop and sync it to my iMac from then on when I get home for the music, video and other media?