Learn the ins and outs of Windows 7 Device Stage.  After a brief video introduction to the feature you are given an opportunity to see how you can interact with Device Stage for all  types of hardware.

This was entirely built in Microsoft Silverlight as well – another Microsoft development platform for creating engaging, interactive user experiences for Web, desktop, and mobile applications when online or offline.

Windows 7 Device Stage Demo

In addition to the new Silverlight based demo there are other resources to learn about Device Stage?