Microsoft has created a sample application that shows off their latest technology:
The demo utilizes several technologies including: IIS7, ASP.NET Ajax Extensions, Linq, Windows Communication Foundation, Windows Workflow Foundation, Windows Presentation Foundation, Windows Powershell, and the .NET Compact Framework.
Their first screencast shows life as a shopping cart user and has the usual ajax shopping cart features that we are used to now (dynamic update of amounts). The coming screencasts will show the backend views and will hopefully have some interesting Ajax use cases implemented.
Microsoft, DinnerNow, Application, Screencast