The much-awaited Galaxy S2 phone has ultimately landed on the U.S. shores. Samsung unveiled Galaxy S2 phones for AT&T, Sprint and T-Mobile at an event in New York.

The Epic 4G Touch for Sprint will be available on Sept. 16 and will cost $200 with a two-year contract.

Availability and pricing details from T-Mobile and AT&T are still awaited.

Samsung Galaxy S2 debuted back in February at the Mobile World Congress in Barcelona. The phone was later launched in Europe and South Korea. Consumers bought 5 million smartphones in 85 days, making the Galaxy S2 the fastest-selling Samsung phone ever.

What are its features?

The phones are shipped with Android 2.3 (Gingerbread) in addition to the new version of Samsung’s TouchWiz user interface.

It has a 4.3-inch, Super AMOLED 800x480 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

The refurbished TouchWiz 4.0 is rather similar to the previous version, but it also has a few aesthetic and functional enhancements here and there. The newest version of ToucWiz falls on the enhancing side. TouchWiz adds sweet enhancements plus some welcome aesthetic tweaks as reported by GottaBeMobile.

Like all Galaxy phones, the S2 provides Samsung's Media Hub for your movie- and TV-watching pleasure.

The AT&T version has a 4.3-inch display, while the Sprint and T-Mobile versions have 4.5-inch displays.

The Sprint and T-Mobile versions have more rounded corners than the AT&T and European versions.

Both the Sprint and AT&T versions are powered by a 1.20-GHz dual-core Samsung Exynos processor.

The phones will ship with an 8-megapixel camera with 1080p HD video recording and a front-facing 2-megapixel camera.