eXist-db is a feature rich Open Source native XML database
Minimalistic address book in web browser. No server or plugin needed.
Web Application Server Stack for Delphi/FreePascal/Lazarus
XML Application Framework based on JAVA
GeoNetwork for AU/NZ users
Create XML and JSON data services from any data source
In memory database for XML files
Develop quickly & easily Eclipse 4 RCP Application in JEE/JSE context
an XML doc type for expressing international holidays + actual defs
Student examination tool with math expressions parsing capabilities
Data migration/conversion library based on STX and XSLT transformation
XDBM is an XQuery implementation on the W3C's EXI binary XML format.