As promised, Half-Life 2 has come to the Mac as part of Valve's weekly updates to the Steam library. PC gamers are also in for an update, as the classic first-person shooter gets a few new tweaks.
Half-Life 2, Half-Life 2: Episode One and Half-Life 2: Episode Two are now available via Steam on Mac, sporting Steam Cloud support that will let players access cross-platform save games remotely. Half-Life 2 and Episode One have also been updated with "improved graphical effects" and new Steam achievements, an excuse to revisit those games.
EVE Online: Tyrannis is also available via Valve's digital distribution service as of now, representing Steam's first day-and-date release for the Mac and PC.