Expected as much to be honest. The Original Source Engine was an applicable upgrade to almost all their products, I can't believe they wouldn't do the same and more with the new version. That's a hell of a lot of time and polish when you consider how good their end products come out and all that backwards compatability stuff. So yeah, they've been working on it for years - makes sense. The question is: when will it be ready so we can play Half Life 3?!!!!!