I hope the SteamBox will change that soon. Valve can even sponsor indie devs to make a linux port / promote the Source Engine (I remember reading the linux port

I hope the SteamBox will change that soon. Valve can even sponsor indie devs to make a linux port / promote the Source Engine (I remember reading the linux port has better perfs than the windows version) / do something else, like selling Half Life 3 only on SteamBox during the first month (they won't, but they can). If they manage to sell a lot of SteamBox from the beginning (with low costs, like the Nexus model for Android), they can start something. And then the big players will come. And then we'll get good linux CG drivers.