Microsoft has just released a preliminary outline of what will become Exam 70-540 - Windows Mobile 5.0 Application Development. Currently the outline indicates that this exam is going to focus on .NET Compact Framework Foundation, User-Interface, integrating and managing data using ADO.Net, XML, File System, and SQL Mobile, Interoperability and Platform-Specific Features, as well as Optimize, Package, and Deployment. If you're already a Microsoft Certified Professional or you are working towards your certification, you might want to add this exam to your list.
Source: Jason Langridge
"I have no special talents, I am only passionately curious" - Albert Einstein