This article misses one interesting point. Tizen, Firefox OS, Ubuntu Linux and Open WebOS are all HTML5 based OSes, most if not all of the apps are web apps.<p>I doubt that companies with large investments in browser technology like Google, Apple and Microsoft could just fall overnight when the potential threat is something they help create.<p>Google most of all as they already have an HTML5 focus OS, how difficult would it be for them to make a mobile version or add compatibility with it's apps into Android?