Telerik have just announced the release of their RadControls for WPF Beta 2. The special thing about this release is that some of their Silverlight controls are also included in the distributable – TreeView, PanelBar, Calendar, DatePicker, Slider, ProgressBar and NumericUpDown. Soon almost all of the Silverlight controls usable in a desktop scenario will be part of this suite. What matters the most is that when using this suite the code you write will be applicable for both WPF and Silverlight applications. Read more here.
To learn more about the future plans of Telerik check out their Q2 2008 road maps.