My wife and I are on a family plan that we just extended in June. Unfortunately we took advantage of two phones that were free with the extension (neither in use both brand new in boxes). Would it be possible to pay the ETF on my line only and then purchse a HTC Diamond with the discounts? I am aware that the plan would have to be changed to a Smart Choice family plan. Any information regarding this would be helpful. I really would rather not pay full price for the Diamond. I did for my current phone V9m.