Probably a dumb question I could get answered if I searched on my own, but what the hell this is what the forum is for, right? Let's say my wife wants an iPhone and she wants to sync it on my Mac with a different address book. I currently have the only address book and she barely uses the computer other than to hook her Ipod up to iTunes, how do I create another address book for her iPhone? I don't want all of her names and my names mixed. Anyone out there using 2 iPhones on the same computer with 2 different address books?