Of the seemingly countless variants of the Galaxy S that Samsung's in the process of deploying around the globe, one stands out in a couple very unique (and important) ways: Sprint's Epic 4G. The Epic hangs on to a couple of the Galaxy line's most important characteristics -- namely the 1GHz Hummingbird processor and the 4-inch Super AMOLED display -- but adds in a sliding landscape QWERTY keyboard, support for the wickedly fast WiMAX network that Sprint shares with partner Clearwire, and a handful of other notable one-off customizations.
We've already taken a look at two of the other US-bound Galaxy S models -- AT&T's
