There have been plenty of rumors about the upcoming Nokia Lumia 900 Windows Phone for AT&T. It is rumored to have a 4.3″ Clear Black AMOLED display, run Windows Phone Mango, and sport LTE for super-fast internet connectivity. Now New York Times is revealing a little detail about the Lumia 900 that we did not know before: apparently, the Lumia 900 will be made out of metal. That is surprising considering that the Lumia 800 and N9 use Nokia’s unique polycarbonate construction that provides a RF transparent environment for excellent connectivity. It would seem logical to assume that the 900, which is rumored to have a 800-esque design, would use polycarbonate once again. The New York Times also used to word “sleek,” which could further confirm previous rumors about a thickness of just 9mm. The Lumia 900 is rumored to release Monday, here’s the press conference times.