[Update 3:15pm ET: And Valve has sent word that the service is now officially live, the store is operational (look at those deals!) and all is right with the world. There are 57 titles available for launch, and listed after the break. We've bolded out some of our picks, but don't let our recommendations stop you from downloading Wedding Dash 2: Rings Around the World.
Of note, the Diablo-esque Torchlight is only $9.99, a cool 50% off. Too pricey for you? Valve's own Portal – which it calls "the first of Valve's Source engine based games available on the Mac" – is available for the even cooler price of $0.00 on both Mac and PC until May 24th. Don't believe us? Look here.]
Tipsters are telling us that the Steam for Mac service is now live ... sort of. While the client makes the rounds, and the beta whitelist has been lifted, it appears Valve isn't quite ready to break out the cigars. The game store isn't live, and it's still not clear which titles will be available for launch. In this writer's case, games I had purchased on Steam for Windows previously (hello, The Dig!) downloaded just fine for me on Mac OS, though I'm unable to purchase new games in the app. (You can always use the web store!)
We'll update this post as the service prepares to takes its first steps, say its first words, and make its first million. Let us know how you fare in the comments!
Download Steam for Mac [DMG download]