Open Source and Free Software

That a big name like Valve is producing their own Linux based OS and game console, especially since the XBone is flailing in the market so badly.

With Valve, Desura, Humble Bundle and now GoG.com all supporting Linux and the surge of big name titles like Civilization, Borderlands, Metro, The Witcher, Company Of Heroes and Total War all either out or soon to be released as well as highly anticipated titles like Star Citizen and Beyond Earth being confirmed means that Microsoft is going to have it's consumer base eroded pretty quickly as the family geeks and gamers start switching over more and more as they are the ones that make the recommendations and buying decisions for allot of their friends and family, most of whom have no explicit need for Windows.