Unlimited data for an iPad is something that I have been looking into for the last couple of days. I'm finding out that there are no unlimited plans for iPads anymore. However it seems that if you have a Verizon account and a Verizon unlimited telephone plan, you can pop that soon into a Verizon iPad and have a truly unlimited data supply. But you already have to have it. T-Mobile does offer an unlimited data plan for a telephone that is still available.. Will that Sim designed to be used in the telephone also working in an iPad? I know that it cannot be done using AT&T devices and Sims. Anyone with that experience using T-Mobile?