Thanks for sharing this tool!
We are trying to move some projects out of a huge SVN repository. This seems to be promising except two problems.
1. The author/date information was not carried over as is (I know they are in comments). There is actually a way to do this. I known vss2svn project does it well.
2. SVN properties are not copied. While missing svn:ignore is just an inconvenience, missing svn:external result in build failure!