Great news for Mac users, here is a little taste of Valve’s Steam service running on a mac and it is very similar to how it is on Windows. There does not appear to have any evident loss of functionality, let’s hope it stays that way. The Mac version of Steam is currently in private beta only.
While watching the video, keep in mind you’re not controlling the cursor, so don’t go about trying to click stuff; there are no games anyhow. Enjoy!