I upgraded from the Droid 3 to the Droid 4, and was asking about being able to swap phones by swapping the SIM card like I used to do on AT&T (I have Verizon now). The Verizon tech told me that I can enable it by just dialing *228, but that every time I did it, I would need to change out the SIM card in the Droid 4 with a NEW sim card. To me, that's a deal breaker and I would never do it, but he said not to worry, any time I needed to do it they would give me a new SIM card for free. I asked, "Well then just give me a few so that I can do this and not worry about it." Nope. Can't do it. Now I have questions: 1. Can I just move the SIM between phones ? 2. What would EVER change in the phone that would require me to put another SIM card in? 3. Does this sound like the Verizon employee just being clueless? Thanks!