Pocketnow, who released the most recent Nokia Lumia 900 render, has shared some more information on the handset.
The device is apparently code-named Eloko, will have both AT&T 3G and also the T-Mobile AWS 1700 Mhz band, and come with 4.3-inch WVGA display, 512MB of RAM, eight-megapixel camera, and a large 1830mAh battery.
The handset will be around 12 mm thick.
Pocketnow notes the handset will ship globally, but will not in fact come with Tango. Hopefully this does not indicate that the OS update has been delayed.