Portal is Free (Well, it was - now it's just a good deal).

Steam for the Mac has been released, and Aperture Science couldn't be happier.

Since May 12th, millions of new recruits have poured into the Aperture Science Enrichment Center for Portal testing. If they are ever found, we are sure they would want you to know that the wheels of science turn ever onward. Today, in an effort to restaff, Aperture Science directs your attention to this motivational recruitment video.