Samsung had unprecedented success last year delivering its Galaxy S line of flagship Android phones to a global stage, and for good reason: it launched as one of the thinnest smartphones in the world, the homegrown 1GHz Hummingbird processor was plenty fast for its day, and the 4-inch Super AMOLED display was a serious dazzler. Particularly impressive was its showing in the US, where Samsung managed to get all four national carriers — historically stubborn carriers — to release variants of the phone. But could it repeat the coup in 2011?

That’s where the Galaxy S II comes into play. Introduced to glowing reviews in Europe several months ago, Samsung has managed to get three of the four US nationals back on board for the sequel (the fourth, Verizon, is rumored to be holding out for an even higher-end Google Nexus device that could be launching in the next few weeks). Expectations are obviously high, and Sprint is the first to take a stab at it with the release of the gratuitously named Galaxy S II Epic 4G Touch. Is it worth your $199.99 on contract? Read on.