Corinna was noticing some oddities in the release-2 area that I've just tried to fix. The ownership of files should now default to cyguser:cygwin from now on and that should theoretically eliminate problems when deleting files or changing protections.
The big problem with my optimistic use of a unionfs is apparently that the sourceware.org kernel is not new enough to encompass some bug fixes which would make this work better. I think it is still worthwhile to continue using a unionfs here but if you notice problems please send them here. cgf
