I captured a quick demo from the solution created in Chapter 13 of our book. This was one of Chad Wach's chapters and I have found it to be a great tool to demonstrate not only the out-of-the-box capabilities of Visio Services in SPS 2010, but also its extention points. In this webcast, you can see how you can connect a visio diagram to data causing the diagram to conditionally format it shapes. We then publish it to a SharePoint site. Once there, we use some javascript to take advantage of Visio Services and SPS 2010's APIs to add some interactivity. This includes overlays, writing back to a SharePoint list, and pulling data out of the user profile service. All with no compiled code! You can download the video here.

Enjoy! Ed