I may sound crazy, but I hope they continue their abandonment of PC gaming because it's left a hole open for Mac and Linux to get into the fight. How many people keep windows around solely because of gaming? Windows security is a joke, it runs painfully slow, it's a resource hog -- there's so many ways Windows is inferior to Mac and Linux and Windows ONLY advantage over them is that Windows is where 99% of the games are.
Mac is now on Steam, and while the games are relatively few that number is going to go up. Steam is the only viable PC gaming platform at this point and now that Mac has their foot in the door this is huge.
Ubuntu Linux is incredibly easy to use and getting easier all the time, and to top it all off its free. To make matters worse for MS, Linux is growing if in no other way at least general interest and awareness. If it ends up getting Steam support and games start moving over, performance whores are going to quickly find out that Linux's incredibly low overhead means you can get a shit load more performance out of your system.
If they don't pull their collective head out of their collective ass when they finally do come out of their shit cave they're going to find themselves in a world of hurt.
3rd Party Wall of Shame
http://www.nintendoworldreport.com/forums/index.php?topic=30478.msg581036#msg581036
