Wife is getting new iphone 4. I get her 3g and want to move it to my laptop. I don't care about her music, apps, contacts, etc. I just want to sync it to my itunes and my account. Also, I do not have nor need an iphone plan for the sim I will use. Can I just plug into my laptop without a sim and sync my libraries, play lists, etc. I also have an ipod touch on my laptop which syncs itunes. Any help would be greatly appreciated.