There are some sales I would like to take advantage of regarding the iPad Mini 2. It seems that even though there are Carrier specific iPads, all of them work for other networks. Currently I'm using T-Mo and I think they are offering 200MB for life just by having their SIM (don't know how that is going to fly, lol.) But I hear that getting Verizon's iPad Mini offers the most flexibility for use and that any data SIM from any carrier will work on any of these iPads? Is this true? Hoping someone can provide some insight. I think that the phone service is what is incompatible but the data is a different story.