eXist-db is a feature rich Open Source native XML database
your repository framework
Software builder for both veteran programmer and novice.
XML-Print: typesetting arbitrary XML documents in high quality
Data migration/conversion library based on STX and XSLT transformation
Powerful export module with xslt and python language support for Archi
Toolkit for rapid XML and web application development
Creators discontinued Chiba & founded betterFORM http://betterform.de