So should I post this on the Mac OS X forum or what? Valve will be bringing Steam to Mac OS X!
Bringing Steam to Mac OS X involves certain obstacles, from a development point of view. Most of the games available on the catalog don’t have a Mac version, especially older games that originally ran on DOS. But since Apple’s PCs use the same hardware as Windows PCs, I don’t think Valve will have too much trouble, especially if Apple has started taking Valve seriously. A good number of games already have Mac counterparts/work on a Mac anyway.