Microsoft CEO, Satya Nadella, recently announced that the next version of the Windows operating system (OS) will be one unified OS that works on all platforms. This means that Windows PCs, tablets, phones, and even Xbox will be running the same OS. The major advantage here is that when developers create an application, it will work on all of the different platforms. This will make it easier and cheaper to develop for Windows and I think when Windows 9 (or whatever they decide to call it) releases we will see increased developer support on all Windows platforms.
You can go to the article at Yahoo! to read more.