Whatever. 4G is nothing more than a marketing term because it's been thrown around for months and months. The International Telecommunications Union was way to late to the party, and their laziness has made it impossible to set a meaningful standard for "4G"

In reality, 3G service is borderline fast enough to use for most internet usage, and "4G" service offered by Sprint and TMobile, when you can get it, is so much faster than traditional 3G service, you can't help but call it something else.