Most people think of workflows as a tool to represent and automate back-end business processes. Back-end business processes normally require some user interaction but their main purpose is not to drive the user experience or manage the UI. However, there is a growing type of application that leverages workflow as a tool to drive the user interaction and drive the user experience of an interactive process. This type of technology is called page flow.
Last year at TechEd, we showed off some bits we had been working on internally that were designed to make that possible, the ability to model the user interaction of an application using workflow. This approach provides developers the ability to continue
managing the complexity of their application in a structure and scalable manner. It turned out that the code we showed at TechEd wasn't going to end up in any of the product releases, so the dev team requested permission to release that code as a sample of
how one can implement a generic navigation framework using WF that can support multiple UI technologies (i.e. ASP.NET and WPF). This year, I just finished giving a talk showing this off and talking about how it will be available today!
You can find more information here on my blog.