Jut for the people who did not see this:
Steam has been rolled out for Macs about an 1 hour ago and too celebrate VALVe is giving Portal to all it's users (Mac or PC). So get out there and start thinking with p0rtals!
Steam has been rolled out for Macs about an 1 hour ago and too celebrate VALVe is giving Portal to all it's users (Mac or PC). So get out there and start thinking with p0rtals!