This week (June 4-8) if you are at TechEd in Orlando, please come by to watch me speak:
DEV326 Authoring Custom Controls and Components in Microsoft Windows Presentation Foundation at 8:30AM in N320 E. The abstract is as follows:
Make it easy for developers to use your Windows Presentation Foundation (WPF) Controls and stimulate leverage and reuse. Learn how to develop a WPF Custom Control and leverage Cider and Blend’s design time extensibility features to create a great user experience reusing this control in a designer. This session demonstrates how easy it is to develop a control with a rich design time interaction, including detecting design time, design time metadata and UI, adding actions to the context menu and property editing.
The title is slightly misleading as the session was named prior to my involvement -- my whole talk will focus on how you can create and control the design time features for your WPF custom controls inside of Visual Studio "Orcas" and Blend.