I'd like this too. I do not mind if Apple have to test and sign the drivers before they are released, pretty much like Micorsoft's WHQL.
The games industry, at least in Europe, is bigger than the music and movie industries combines. Why Steve Jobs doesn't see this is beyond me.
iOS games revenue is tiny compared to the PC/console/mobile console markets.
If they keep spending the same amount of money/resources on OS X driver development as they do now, it'd be probably the same frequency of releases.
The gaming industry is big, and I don't think it's really up to Steve Jobs to do something about it. Apple is expensive. Even if games did run as fast as Windows on OS X, people still wouldn't buy macs just to play games. It's just not worth the premium.