Serna for Mac OS X 4.2
Syntext Serna Free is a compact yet powerful solution for XML authoring on Windows, Linux, MacOsX, and SunSolaris.
Serna Free is intended for personal use at home, documenting open-source projects, education, and other non-commercial uses. Authors with virtually no XML experience can start working with structured content in a familiar environment that looks much like a conventional word processor. Supports DITA, Docbook and other popular formats.