I am not clear on the point of this article.
Apple has it's own distribution system for apps. What prompts your conjecture that the AppStore is not enough? Apple handles vast volume and has 100% control over content with the way it is now. Apple's platform is well known, mature and expanding and likely serves daily 100's of millions of requests, if not sales.
To include game titles, like that of Steam, would be a natural expansion in an environment the existing users are comfortable and need no additional training or explanation. Essentially, there would be no difference in how games are ordered as opposed to traditional apps, right?
And we are talking games. The vast majority of games don't work for Apple. Really, don't the people who want to play Apple compatible games have them already or out of frustration buy a PC and play them?
This YouTube video pretty much sums up gaming on the MAC.
http://www.youtube.com/watch?v=FxPXFptzQRY
I would ask you to contribute something tangible. Something we can use. This just takes up space. No value in it. You need to ask yourself, "Am I writing this just to have something to post, does this matter? Hell, is it even funny?"
Could you point us to some of your recent work you contributed here?