The .NET Framework 4.0 includes many enhancements for WPF developers, including improved graphics performance and layout rendering, better localization support, and improved interoperability.
Key areas that we are investing in for WPF Data Visualization around the framework and Visual Studio 2010 include:
Infragistics provides broad, rich WPF charting that covers many more scenarios than what Microsoft's XAML charting controls (from the Silverlight Toolkit) can accomplish within WPF: