No Contract Cell Phones

[Raavak]

Does anyone have any experience with companies like Zact or Ting? I guess the concept is you buy your phone up front and then just pay monthly for what you use and can end up paying much less over the course of time than you would with a contract through AT&T, Verizon, etc. The idea is that with the $1 phones you buy you actually pay for it throughout the course of your 2-year contract, and thensome.

Other than Joe Rogean and other people basically paid to advertise them I haven't heard from "real" people regarding these. Anyone with any experience have feedback?