As developers, we can <insert sarcasm>NEVER</insert sarcasm> be satisfied with what we have today. We are always looking to the future to see what is in store in the ways of tools and technologies.
If you are not already aware, the next release of Visual Studio (codenamed "Orcas") will include the .NET Compact Framework 3.5. This new version has a lot of new features, including the addition of Windows Communication Foundation ("WCF") for .NET CF. This particular feature is something I am particularly excited about, a I personally feel some of the most applicable use cases for WCF pertain to mobile devices.
Some of the bits for the .NET CF 3.5 are already available as part of the Orcas CTP (more information online at MSDN). If you are interested in .NET CF details, be sure to check out the .NET CF Team Blog, as well as Mark Prentice's Blog. Mark specifically has some nice "how it works" posts -