Earlier today we heard that the Nokia Lumia 900, which is Nokia’s first LTE enabled Windows Phone smartphone would be available with US mobile carrier AT&T in March.

AT&T seems to have an exclusive deal with Nokia for the Lumia 900 in the US, and now there are reports that the Lumia 900 will be headed to other carriers in quarter three of 2012.

According to the report, AT&T has an exclusive 45 day deal with Nokia, and it is possible that after this date, a slightly different version of the Lumia 900 will be headed to other US mobile carriers, and it is reported to feature a 12 megapixel camera, instead of an 8 megapixel camera on the vurrent version of the Lumia 900.

Other specifications on this new rumored Lumia 900 are expected to be the same as the existing model, which include a 4.3 inch AMOLED touchscreen display with a resolution of 800 x 480 pixels.

Processing on the Lumia 900 is provided by a single core 1.4GHz processor and it also features 16GB of built in storage, plus the latest version of Windows Phone, version 7.5 Mango.

As soon as we get more information on whether or not the Lumia 900 will be headed to other carriers with a higher resolution camera we will let you guys know.

Source WinSuperSite, WMPoweruser