BlueDanube

^ That would be awesome. Literally the best possible way to announce anything. Just that. Two minute conference.

^ Not just two minutes man, we gotta have that gameplay footage. Seeing footage before I buy is what sells the game to me (though I know, it's Valve).

And I wouldn't buy a game unless I've seen reviews of it.

But I'd say it's a pretty safe bet that some people will buy it anyway. Then we'll have gameplay footage and reviews and Valve will swim in even more money than they currently do.