The Nokia Lumia 900, Nokia’s upcoming flagship Windows Phone, has been spotted in a promo video for developers.  The video was posted to Nokia’s public YouTube channel before being marked private.  It doesn’t tell us much, although it does have a caption that reads, “When you bring together Nokia’s stunning new hardware and a dynamic Microsoft OS you get amazing every day.”

Nokia’s Lumia 900, code-named Ace, is expected to feature a 4.3-inch ClearBlack AMOLED display, a 1.4GHz processor and an 8-megapixel camera with Carl Zeiss optics. Nokia France CEO Paul Amsellem on Wednesday hinted of this device while speaking to a French newspaper, but Nokia countered by saying that they had no new announcements.

Check out Nokia’s promo video below…