After a weekend of celebrating a kickoff event in New York City with Nicki Minaj anchoring Nokia's Times Square event, AT&T today started official sales of Nokia's Lumia 900 smartphone at its stores across the United States. The Nokia Lumia 900 is Nokia's most exciting phone to date, featuring a 4.3" ClearBlack Display screen, an 8 megapixel camera with Carl Zeiss Lens, and is powered by AT&T's 4G LTE network.

The phone is poweredby a 1830 mAh battery and its 8-megapixel camera has a wide aperture (F2.2) and wide-angle focal length (28mm) for shooting nice photos in low-light conditions. The smartphone is powered by a a 1.4 GHz MSM8x55 SoC.

The Lumia 900 is available for $99.99 on a 2-year contract from AT&T. The colors available today include the black model and Cyan color. White Lumia 900s will be in stores on April 22nd.

Accessories also for sale include the Nokia Purity HD Stereo Headset by Monster, the Nokia Play 360° Wireless Speaker, and soft bumpers that fit around the edges of the phone.