If you've been around long enough, you'll remember that there actually was a fairly large gaming market brewing for Apple at one point in time, but somewhere along the way things went sour and the Mac went a long time with a very limited selection of titles. That's slowly changing, especially with developers like Blizzard and even Electronic Arts throwing their weight behind OS X.
What about Valve, a company that seems to have the Midas Touch when it comes to unbelievably great games? Here's an interesting question posed to Gabe Newell:
“Kikizo: People keep asking you about a potential Macintosh version, and your stance is that this is a strictly Windows project...?
Gabe: Well, we tried to have a conversation with Apple for several years, and they never seemed to... well, we have this pattern with Apple, where we meet with them, people there go "wow, gaming is incredibly important, we should do something with gaming". And then we'll say, "OK, here are three things you could do to make that better", and then they say OK, and then we never see them again. And then a year later, a new group of people show up, who apparently have no idea that the last group of people were there, and never follow though [sic] on anything. So, they seem to think that they want to do gaming, but there's never any follow through on any of the things they say they're going to do. That makes it hard to be excited about doing games for their platforms.”
We're hoping that Apple has already starting being more receptive, it might be a little late for them to start now. There's nothing like a little competition to drive innovation, and games could honestly be a pretty large stumbling block for some.