I've released an updated version of my Dynamics CRM Configuration Data Mover tool that includes the following GUI enhancements:
A reorganized toolbar
A separate form to enter and validate connection details
Validation that the XML in a job step can be parsed as XML (does not actually validate the FetchXML query)
Check for latest version functionality
Getting the Dynamics CRM Configuration Data Mover
The source code is available in my GitHub repository here.
A compiled version can be downloaded here.