http://blogs.msdn.com/b/wpftesting/archive/2010/08/04/wpf-ribbon-released.aspxWPF Ribbon has been released on MS Downloads . Enjoy it! Highlights: New Controls – We have numerous new controls in this release of Ribbon such as, RibbonGallery, RibbonComboBox, RibbonMenuButton, RibbonSplitButton, QuickAccessToolbaren-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)