Halo on NDS demo

Apparently this is a video of a Halo demo on the NDS that was an unsolicited pitch to Bungie. They, of course, turned it down, most likely not wanting to incur the wrath of M$.
One of the IGN staff members, Matt Casamassina, was the first to discover and play this demo in 2007. It looks like a pretty great concept and hopefully there will be some "hardcore" FPS games released on the NDS in the future.