One area Windows Presentation Foundation is leaps and bounds ahead, even at this early stage, is in charting components. The graphical possibilities of WPF/Silverlight are so good, that there really is no comparison. It is what is known commonly as a ‘one horse race’.

Visifire have released their free open source data visualisation charts which are of a very high standard. The best window forms charting suites are either, Devexpress or Dundas but both are expensive (especially Dundas) and still incomparable – quality wise. Component vendors like the aforementioned are going to really have to raise their game, because WPF/Silverlight makes it so much easier for creative people to create visually stunning components.