Samsung Galaxy S II unveiled for AT&T, launching September 18

AT&T has confirmed its version of the Samsung Galaxy S II as the big US debut is underway at a press event in NYC. Instead of rebranding the device as the "Attain" as previously rumored, AT&T will simply keep it as the Samsung Galaxy S II. But unlike the other variants for the WiMAX network and for T-Mobile, AT&T's version will not get the screen size boost up to 4.5-inches.

The AT&T Samsung Galaxy S II will feature the original 4.3-inch sized Super AMOLED Plus display probably because it already has a super-sized Samsung Infuse 4G at the 4.5-inch size. But, the AT&T Galaxy S II will be slightly thicker than the original at 8.89mm. It will sport a 1.2GHz Exynos dual-core processor, a 2-megapixel front-facing camera, and an 8-megapixel rear-facing camera with auto-focus and LED flash, capable of 1080p HD video capture.

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It will run Android 2.3 Gingerbread and will support AT&T's HSPA+ 4G network. It is set to launch on September 18, but no specific pricing information has been released yet. We're still at the Samsung event in NYC, so stay tuned. We'll update as more details unfold.

UPDATE: We now have Hands-on Video of the AT&T GSII – check it out now!