I completely disagree. They've already (mostly) solved the fragmentation issue by bundling a set of libraries with Steam that roughly resemble Ubuntu 12.04, an

I completely disagree. They've already (mostly) solved the fragmentation issue by bundling a set of libraries with Steam that roughly resemble Ubuntu 12.04, and I've run Steam on just about every distro out there and had good experiences. The desktop gaming industry doesn't want a pre-existing developer ecosystem like Android has. It wants something like it already has on Windows, and more and more game engines are supporting OSX/Linux as build targets. I just can't imagine playing Dota2 on Android and have it perform better than on Windows (which is currently the case for Linux), and I can't imagine porting it to Android would be easier than porting it to Linux.