An updated version of the WPFToolkit has been released today. This includes some high pri bug fixes which are briefly described in the downloads tab. As a reminder, if you have any questions or find any issues please use the Discussion list and the Issue Tracker. Enjoy!
Also, a new set of WPF Themes has also been released in the WPF Futures section. This is a collection of 9 themes that are also found in the Silverlight Toolkit.