MojoKid writes: "Some of the most popular Android smartphones currently available are members of Samsung's Galaxy S line. Powered by Samsung’s own 1GHz ARM Cortex A8-based Hummingbird processor with a four-inch Super-AMOLED capacitive touchscreen, it’s no wonder Samsung has sold over 5 million Galaxy S phones. The Epic 4G variant of this phone, available through Sprint, is also one of the scant few 4G capable devices on the market currently. Sprint's 4G network utilizes WiMAX mobile broadband, that has a theoretical maximum throughput of 40Mbps. Sprint claims that the average download speed on its 4G network is between 3 to 6Mbps with peak download speeds above 10Mbps. The performance figures seen here actually show solid throughput for the Epic, besting competitive 3G devices and even versus some with a Wi-Fi connection. 4G WiMAX service is still rather limited geographically but hopefully devices like these will help to kick the roll-out into gear a bit."