Farhad Manjoo deflates it:
[T]he iPad now carries the most consumer-unfriendly spec in all of tech: “4G.” That label, which theoretically specifies a device’s wireless data speed, doesn’t really tell you anything about how fast your gadget might surf the Web. If you see any phone, tablet, toaster, or fridge that’s capable of “4G” networking, you should assume the guy who’s selling it to you thinks you’re a fool. And if you do put any stock in the label, you are a fool. 4G—and, relatedly, “3G”—means nothing. It never has, it never will, and it’s time we banished it from our devices for good.
The Dish 