Nokia Lumia 900 for ATT leaks out on a Christmas Card

A Pictures of Nokia upcoming Windows Phone lumia device for ATT LTE network popped up in a Christmas card, thanks to a creative Microsoft partner.

The handset, dubbed Ace, is most likely going to launch as Nokia Lumia 900 in regions other than the United States. It will finally bring a front-facing camera to Nokia Windows Phone lineup a nice addition to its LTE network compatibility.