We've uploaded two more virtual labs on MSDN that goes in depth on .NETCF Windows Communications Foundation and How to build an application that is future proof. Click on the links below to access the labs directly:

 

Building an Application using Windows Communications Foundation (WCF) and Store and Forward Transports in the .NET Compact Framework

 

Eternal Application - How to Build for the Future

 

or click on this link to look at all the available virtual labs today : http://msdn.microsoft.com/en-us/virtuallabs/aa740452.aspx