Less than a week after images of Nokia's unannounced Ace LTE Windows Phone turned up in a holiday video card, new details have emerged. PocketNow reports that the new phone — codenamed Eloko — is in fact the Lumia 900, and will be sold globally as Nokia's premiere Windows Phone device. It is expected to hit AT&T on US shores in March. It will reportedly come with 512MB of RAM, an 8-megapixel camera, a 1830mAh battery, and an approximately 4.3-inch WVGA display — a substantitve upgrade from the Lumia 800's 3.7-inch screen. Coming in at 5.64 ounces and .47 inches thick, the new phone will run a tweaked version of Windows Phone 7.5 Mango. We expect the same from HTC and Samsung's forthcoming LTE Windows Phone devices. Official details should arrive next week at CES — where PocketNow mentions Nokia may be announcing a new mid-range Windows Phone as well: the Lumia 719.