Sorry for the confusing subject title. Here is the situation:
I am going to add my girlfriend to my exisiting Verizon account, she will be added on as another line. She doesn't have Verizon service.
She wants the Droid X. Right now, the Droid X is buy one get one free. So if she goes onto my account, purchases the Droid X, gets one free. Can I use the other Droid X on my line? I want to switch from my Droid to the Droid X. Will it work?