I'd like someone to correct and/or confirm my assumptions about the iPad Air/iPad rMini. In looking at the specs, the iPad's this year all have the same baseband chip. They all support the full range of LTE bands. Ignoring, for a moment, Verizon and Sprint's silly "we won't use a non-Verizon iPad" policy and deal with just T-Mobile and AT&T, it seems like buying a T-Mobile tablet might be the best way to go... If you buy a T-Mobile tablet, you have TM sims out of the box, and it should work with the free 200MB/mo deal -- forever. BUT, given that AT&T is just a sim-swap away (and AT&T is fairly easy-going about activating sims/imei's even if it's not officially an AT&T device).. Am I right? Is a T-Mobile/AT&T device just basically one sim swap away from being used on either network?