I found this via the Drupal Docs mailing list:
http://doc-book.sourceforge.net/homepage/
It might be worth looking into for easy docbook editing.
It certainly wouldn't be as easier as
http://www.xmlmind.com/xmleditor/
and AFAIK DocBook WiKi supports only subset of DocBook elements.
Not that we use a full set of DocBook elements :) BTW I had no time to look into this tool any further, but for some people, a *web based* editor for phpdoc would be quite helpful.
Goba
