XAML was originally developed by DevDiv. It's now baked into Windows 8 and is developed/supported by the WIndows team, Which IMO is where it belonged all along. It's also now easily accessible from C++ and Javascript.

FYI, what was once one WPF/Silverlight/XAML team is now three teams: Windows, WIndows Phone, and DevDiv.

>On a side note, I took a quick look at the Xaml based stuff for Win8 today and, AFAICS, most of it could almost be transported from a Silverlight version - makes you wonder why, when they already have a WPF and Silverlight implmentation, they needed to re-invent the wheel....