Samsung announced the release of the Galaxy S II smartphone to three carriers in the United States. The phone will be available on AT&T, T-Mobile, and Sprint.

The phones are shipped with Android 2.3 (Gingerbread) in addition to the new version of Samsung’s TouchWiz user interface. Samsung has also made it possible to create iOS-style folders in the app list, letting you arrange your downloaded apps into groups. Samsung Kies Air will let users sync content over Wi-Fi from their home PCs to their phones. Samsung added Vlingo’s voice command system, which lets you dictate voice message

All model features a 4.3-inch, Super AMOLED 800×480 screen, a dual core 1.2-GHz processor, fast 4G network connectivity, and a sleek and simple design. Super AMOLED Plus display is bright and vivid, and surprisingly crisp given the relatively low resolution

Like all Galaxy phones, the S2 provides Samsung’s Media Hub for your movie- and TV-watching pleasure. The phones will ship with an 8-megapixel camera with 1080p HD video recording and a front-facing 2-megapixel camera.

The AT&T version of the phone is the thinnest at 8.89 millimeters, beating the Sprint version with its 9.65 millimeters. The Sprint version will be named “Galaxy S II Epic 4G Touch” and launch on September 16 for $199.99, while the plain old “Galaxy S II” will launch September 18 on AT&T, with prices not yet announced. Neither pricing nor dates have yet been announced for T-Mobile. The Galaxy S II has been Samsung’s fastest-selling smartphone so far, with more than five million sold in 85 days, according to Samsung’s press release.

Via gottabemobile