First impressions are really good. The install went fine on a dual core laptop in parallel with VS 2005 already installed. The first thing I notice is that the performance is good (no worse than 2005) and the XAML designer is much improved over the cider CTPs. Had a quick play with LINQ on a generic list and the intellisense support seems spot on. Must sleep now.

Working in WPF, it's not very long before you come across Routed Commands. The idea of allowing events to bubble and tunnel up and down the UI tree has always been around but the ICommand, RoutedCommand and RoutedUICommand features of WPF have made it a lot easier. Here are some useful resources for finding out more if you are stuck. Jelle Druyts Article "The Command Pattern in Windows Presentation Foundation"Adam Nathan's sample chapter on "Important New Concepts in WPF>Commands"