I am DocBook enthusiant for more than a decade. In my opinion it is one of the best solution for software documentation so far. I am sad its use diminishes in favor of systems based on AsciiDoc, Markdown or Confluence. There are many reasons for that, one of them being absence of open source or affordable WYSIWYM editor (an alternative to quite expensive Oxygen XML Author).
As a developer I am investigating promising projects which could fill this gap. My goal is to support them. By testing, by providing feedback, in case of open source by fixing bugs or implementing new features.
I am interested in general purpose document authoring (not limited to a specific use case).