A draft set of design guidelines for WPF has been published on the MSDN, to help developers and designers make appropriate design choices when creating user interfaces. In conjunction with the UX guidelines for Windows Vista this should help weilding the enormous power of WPF to create great UIs. The guidelines help developers/designers to consider their UI based on the type of application they intend to create: productiviy application, kiosk app, utility etc. Then it offers prescriptive advice per feature set of WPF detailing what is good, and what to avoid.
[via Andrew Stopford]