It is here and it is very real. While very short at only a minute long, a trailer for Duke Nukem Forever has been released that includes actual-ingame footage. After more than six years of rumors to the point where people believed it to not even exist, it seems 3D Realms really is working on this long-awaited or long-mocked title.
You can download the trailer from various places, including an HD version in Quicktime format. Of course, a video is just a video and by no means gives us an idea about if or when the title will ever be finished. However, it's the first solid thing to come out of 3D Realms regarding this in a long time so it's a spark of hope.