Just passing along the word, if you caught my MIX '09 talk this year (or grabbed the sources), I demonstrated the Silverlight Toolkit's charting components running on WPF. At the time, I mentioned that we had high hopes to bring them into WPF, and that has finally happened!
More on David Anson's blog post about the WPF charting components.
Jeff Wilcox is a Principal Software Engineer at Microsoft in the
Open Source Programs Office, helping Microsoft scale to 15,000+ engineers
using, contributing to and releasing open source.