As the title suggests, I'm trying to figure out the best way of going about getting all my contacts transferred to my new MBP -- currently my iPhone is sync'd to Windows XP's Address Book. I've already copied my music and authorized the MBP in my iTunes account (but I've yet to sync the iPhone up). There's no way to have it sync'd to both machines is there? One being OSX the other Windows? I know there are 3rd party apps that do this, but I'd rather not jailbreak my phone. Anyway, just looking for suggestions or comments based on what other people have done in this type of situation. Thanks..