I need to prepare a presentation about what's WPF, my audiences are mostly project managers and system analyzers . I intend to show them most important features of WPF like DataBinding . Can you suggest me a list of features which you think will be interesting for my audiences . and also does anybody know any website where I can find presentations about introducing WPF ? thanks
Other answers already mentioned the technical advantages. Since your target group consists of managers, you might want to throw in a few non-technical points:
WPF is the new "Microsoft standard" for developing rich client applications in .net.
WPF has useful features for designing user interfaces:
(Well, the Visual Studio Designer support is not so great yet, but I've heard that this improves drastically in VS 2010.)