Portal 2 isn't the only game being affected by the curious properties of Valve Time. While promised Wednesday updates to Steam for Mac have been late (or nonexistent), Valve is about to make up for it with Team Fortress 2.

Faithful followers of Team Fortress 2 won't be surprised by Valve's next choice. TF2 has been "coming soon" to Mac for a week now, but the team-based multiplayer online shooter is finally here. Well, it will be Thursday, June 10, barring a sudden burst of unstable Valve Time molecules, of course.

Who's got the details on the (un)official Kotaku Steam group? Let's all join up and bonk each other tomorrow. I mean with bats. As the Scout. In Team Fortress 2.

Tomorrow. [Team Fortress - thanks, Michael!]