Windows 8

From eg

The Windows 8 operating system is Windows 7 with the MS phone interface as its default (instead of a start page). While only the Windows 8 Developer Preview has been released, it appears to work and to implement several fairly effective mechanisms of encapsulating old (DOS, Windows XP, Windows Vista, Windows 7) applications including Microsoft's own VirtualPC old-OS emulator.

As a web platform, Internet Explorer has improved markedly and implements some HTML5 and AJAX technology, meaning that Microsoft is now splitting support between the W3C and its own Microsoft .NET/.ASPX-based technologies. C# is no longer exclusively supported, and C++, Java, Python, etc., are in the Microsoft IIS suite. Some developers interpret this as a surrender to the more standard and dominant technologies that W3C develops.