I'm not sure if "Thunders" is the correct term here. It has roughly 44% more usage, which could be significant if Mac OS X didn't have less than 4% total usage.<p>I imagine that when Valve releases Steam for Linux, there will be headlines like "Linux rapidly encroaching on Mac OS X's usage share on Steam" when it hits like 1-2% total usage.<p>Of course Windows 8 is going to overtake Mac OS X, there are simply more gamers on Windows, and gamers tend to use the latest software, regardless of how terrible it is.