Here’s another video about WPF on Channel9, this time with Greg Schechter who is an Architect on the WPF team. No fancy demos here, just really good, low level geek talk (my favorite!) about what sits under the WPF’s hood that makes it possible for designers/developers to provide great experiences to their end users. Lots of talk about exactly what parts are managed vs. unmanaged code. Highly recommended viewing material for all the WPF geeks out there.