Dear Microsoft.

If you force me to go through the trouble of developing cross-platform html apps for Windows 8 and throw away my investment in XAML/C#, then I see that as a HUGE invitation to reconsider my
platform of choice.

Why even wait for Windows 8? I might as well go buy a Chrome-OS machine and get started!

But why? What's in it for you??

Why would you abandon all the cool research and tooling? Surface, Silverlight, Expression Blend, Windows Phone 7, Visual Studio, WPF... throw it away for JAVASCRIPT??