Holy Crap! Just got home from work and saw this on Gametrailers.com and...well...I got excited. I'm not a Halo fanboy, and was more than a bit let down by Halo 2, I still don't know what to think about 3, and now THIS has me actually interested.
But what exactly kind of game is it? Untill I know, I can't care at all. Looks exciting though, as trailers/teasers often do.