Microsoft have just released the Power Tools for the .NET CF v3.5 B2 that can be download here, which includes:
- Remote Performance Monitor and GC Heap Viewer
- NETCF CLR Profiler
- App Configuration Tool
- NETCF ServiceModel Metadata Tool
- Remote Logging Configuration Tool
- NETCF Network Log Viewer
There are a few known issues (like 25+) but most of them are with the CLR Profiler.