Can an iPad 2, for instance, be used for BOTH ATT and Verizon? For instance, if you change your mind and want to go with the other vendor. Unlike with the phones, which are locked to the original service (in the states). I am seriously considering upgrading my original iPad 3G to the as yet unannounced iPad 3. Since I currently have an unlimited data service with it I would hope I could move the SIM to the new iPad. But Verizon has LTE in my area, but ATT doesn't. Of course, it is only a rumor that the new iPad will have LTE support.