[esk]

With Windows 8, Microsoft is ushering in native JavaScript apps. It's probably in their best interest to keep developers firmly in the JavaScript camp—the more JavaScript developers their are, the more developers there are for whom native Windows 8 development will be second nature.

Unless Microsoft adopts Dart, I see them fighting hard to improve the JavaScript development experience.

[danssig]

I don't think Microsoft has the ability to control most developers anymore. Least of all web developers.

[tadfisher]

Microsoft won't have a choice -- Dart targets Javascript as well as a Dart-specific VM.