Valve just launched Steam for the Mac and in celebration, they are giving away
Portal for free on the system. Who do you have to thank for this? Why, Aperture Science of course! Check out this promotional video from Aperture and get the game while the getting's good. You only have 12 days (11 now) take part in this offer and you'll get to play one of my favorite games in recent memory at no cost to you.
