It's official, Valve's digital distribution service Steam is coming to Mac, and bringing Left 4 Dead 2, Team Fortress 2, Counter-Strike, Portal, and the Half-Life series (along with Source) with it this April. But there's more.
If you're a Mac user, you may not know about Steam. By Valve (makers of Half-Life and L4D) it's the greatest game distribution service in existence—like an iTunes for PC games. Now, it could be coming to Macs.