Se bem me lembro, o SymphonyOS segue essa ideia.
Citação do site:
SymphonyOS began as an experiment both in new user interface ideas and the merging of web technologies and the desktop. Over the five years since the SymphonyOS project made it's first public release many of the ideas we put forth have found their way into major desktop environments of all kinds. Now it is time for Symphony to take the next step and again tread where the bleeding edge of technology now allows us to venture. In looking forward we see the internet becoming the operating platform of the next decade. The differences between Desktop operating systems are dropping away as interoperability and shared services break down the barriers between platforms once and for all. Our desktops, laptops, tablets and mobile phones have become little more than a window to the online world where we create share and communicate.