Doubt if it's all that hard to find using Google... I have it, I've seen it... quite good. Visited a number of forums yakkin' about it... Really love the posts of those crying about framerate and all... jeez, it's a pirated alpha version for E3, meant to be shown and such on a very high end system and only the stuff that works gets shown. Duh.
For what it is, it's quite nice... can't say it increased my interest, as that is already in high gear since they announced the plan to create it. It's odd though... personally I'm not much into the pirate thing and somehow feel bad about having it, it's like if a beautiful woman (naked or not) passes me, I look. No worries, not THAT bad! But can understand J. Carmack being rather peeved about it... just hope he doesn't hold it against ATI (that's where the leak was to my understanding) as I have a 9700 Pro in preperation for this upcoming release.
Will it be a rockin' game, oh yeah. Will they get it just right? God I hope so! ;-)