We currently have a family plan with two lines. My line has unlimited data for my Rezound, and my wife's line has no data as she has a dumb phone. A friend has said they would give her their old smart phone and she may take it, but doesn't want to pay the additional $30 for data on her line. So she is looking at other providers. I don't think we could add the phone to our Verizon plan anyway as it is an LG-something phone from T-Mobile. My question is... if she leaves our family plan, how will that effect me and my unlimited data? Obviously I won't need a family plan anymore, so can I downgrade to a plan for a single line and still keep my unlimited data? I'm only about 5 months into a 2-year contract. Her line is not currently under contract. Just looking for some options. Also... any decent providers that would allow for a T-Mobile smart phone to be used on their network? Thanks!