Complicated question.. My boyfriends tab is payed off and his S2 is broken. Can he order a new phone online and not activate it. He would then put his old sim card into my S2 and take that phone, and I would take the new s3 an activate it as my phone. ..? Also, if the new phone is an S3 and my old phone was an S2, the sim cards arent the same so what is the app to transfer all my stuff to the new phone?