Except you are missing something, this hasn't even begun yet. The three major OSes are controlled by Apple, Microsoft, and Google. Linux and relatives are grea

Except you are missing something, this hasn't even begun yet. The three major OSes are controlled by Apple, Microsoft, and Google. Linux and relatives are great but haven't gained real traction outside of Android. Apple wants to sell hardware so creates a tight software ecosystem. Microsoft wants to sell software so focuses making their OS valuable enough to justify the cost. Google wants to sell ads so gives away their OS. Android is open source because Google doesn't have anything to lose by doing it. No more no less.