Nothing Valve is doing with this is going to make Portal 2 any better a game.
FWIW, I agree with you
and Beamer. We can all spot marketing initiatives when we see them. Of course this is designed solely to increase Portal 2 sales and make Valve more money. Valve are a business, and businesses have always existed in this industry since programmers stopped designing games in their bedrooms. This is all obvious.
What is not obvious to me is why the adults on this site (and others) immediately respond in such a negative, childish fashion to a
marketing initiative which a) may get Portal 2 into the hands of gamers early, b) supports indie developers, and c) above all can be ignored by anyone who doesn't want to play along, yet will still give those people the benefit of the early unlock.
Do these same people work themselves up into such a frenzy about adverts at the movie theatre, or every time they drive past billboards? Do they scream and shout at the guy dressed up like a giant hot dog at the ballpark?
Meh.