I am thinking of using this T-Mobile MVNO named 35orless. Very new, but seems to be very interesting. There have been a couple positive feedback on this provider on HowardForums, although the duration of the reviewers on the plan has been extremely short. Waiting for them to update their experience before signing up. What makes them unique is that you will never pay more than $35 (and possibly less) for: unlimited talk/unlimited text/unlimited data(but throttled after 500mb), with roaming on partner networks. I think this would be great for those who have good T-mobile coverage in their area, but want to lower the cost of their service.