QElectroTech helps you to design electric schematics. It includes a schematic editor, a symbol editor, and a title block editor. It uses XML files to store the produced contents.
Chess Rating Calculator is a calculator of chess rating for tournament players. It saves calculation details and opponent names in XML files for later access.
Kludget Engine is a cross-platform widget engine that runs HTML, Flash, JavaScript, and XML based widgets. It is partially compatible with Apple's Dashboard Widgets. It uses the power of WebKit.