[praeclarum]

AFAIK WPF is managed by the Windows team. All this open sourcing has been happening form the Azure and developer teams. Chances of Windows open sourcing some of their code? Less likely.

As someone who worked on WPF though, I will comment that the code may not actually be too useful. It is heavily tied to Windows and its graphics infrastructure.

I'm more interested in seeing something like Moonlight ported to modern platforms.