The news on the next generation of Windows and that it's going to be completely rewritten in HTML 5 and JavaScript, raises the question about the future of Silverlight. The Windows 8 HTML5 thread on the Silverlight forum got more than 4 million views for 3 days!
Source: Microsoft
Today, we also talked a bit about how developers will build apps for the new system. Windows 8 apps use the power of HTML5, tapping into the native capabilities of Windows using standard JavaScript and HTML to deliver new kinds of experiences. These new Windows 8 apps are full-screen and touch-optimized, and they easily integrate with the capabilities of the new Windows user interface. There’s much more to the platform, capabilities and tools than we showed today.