Nokia Lumia 900, which is expected to be the breakthrough device for the Microsoft Windows Phone platform, will arrive earlier than anticipated.

Tech reporter Paul Thurrott, who runs the SuperSite for Windows blog, has said Lumia 900 could be arriving in March. He made the comments during a video interview from the venue of the Consumer Electronics Show (CES), held at Las Vegas between Jan. 10 and 13.

The smartphone runs on the latest version of the Windows Phone Operating System - Mango (Windows Phone 7.5). It is a 4G LTE smartphone specifically tailored to the U.S. audience and will be carried on AT&T's network.

At his CES keynote, Microsoft CEO Steve Ballmer said that the Lumia 900 would be heavily promoted in all of the AT&T's 2400 U.S. stores. However, he did not disclose the price or shipping date.

Nokia Lumia 900 has a 4.3-inch 800 x 480 pixels Super AMOLED Plus capacitive ClearBlack touch-screen with 252 ppi density. The Corning Gorilla Glass, which was used in Lumia 800, has been used in Lumia 900 too.

Lumia 900 comes with dimensions of 127.8 x 68.5 x 11.5 mm and weighs 160g. It will have a 1.4GHz Scorpion processor, an Adreno 205 GPU and feature 16GB of internal storage and 512MB of RAM.

It has a rear-facing 8 megapixel, 3264x2448 pixels unit dual-LED flash camera with 720p video capture capabilities and also a 1.3 megapixel front-facing camera for video calling.