I am looking to replace my iphone, and have some questions. 1. Can I buy a droid, and somehow make it trade places with my iphone? Can I hook the droid up on the same line, and take the iphone off? 2. Does my droid have to be unlocked to use it with just wifi, or can it be any droid. I noticed when I turned my droid 3 on, I had to enter the info, is there any way to by pass that?