Dave,
I'm wondering what (if any) security issues may be introduced by enabling webDAV. Do you have any specific comments on your implementation?
There is also a thread that addresses partial filtering of DAV requests to eliminate a possible DOS attack https://openacs.org/forums/message-view?message_id=175861 . Should there be some guideline that describes configuration that allows webDAV functionality while reducing or eliminating vulnerabilities?
/R