First here is a video that demonstrates how to create a virtual pc emulator for your own embedded device.. So you can preview your work..
Silverlight for Windows Embedded is a XAML runtime for Windows Embedded that is programmed using native code (C++). It has been designed to build rich user interfaces for specialized devices.
Here is a short video that demonstrate the new tools and explains how a designer and a developer can work together at delivering a great Silverlight-based interactive user interface for devices.