Yaxed
Yaxed is a graphical XML editor based on GNOME and LibXML2 that allows the creation of nice, color representations of XML documents. I wrote it when I was asked to give few lessons on XML, XPath and related techologies because I was not able to find a tool to create few dozens XML slides. Right now Yaxed lacks some editor features but it's only a matter of time :)
08 Jul 2002 First Yaxded version released with announcement in LibXML2 mailing list.