The most popular and powerful Android phones currently available are quite possibly members of the Samsung Galaxy S line. Powered by Samsung's very own 1GHz Cortex A8-based Hummingbird processor and featuring a four-inch Super-AMOLED (active matrix organic light-emitting diode) capacitive touchscreen with a 480x800 resolution, it's no wonder that Samsung has already sold over 5 million Galaxy S-branded phones. The latest member of the Galaxy S family is the Samsung Epic 4G Android Smartphone, which adds two unique features that the other Galaxy S handsets lack: a slide-out keyboard and 4G capabilities. We take a detailed look at the Samsung Epic 4G here...