Hi, I think that LyX is a great software, and it's almost ten years I'm using it.
I'm using also mind mapping softwares, like freemind, vym and kdissert. Mind mapping lets effectively work with concepts, organizing them through spatial relations (to know more, here a link to wikipedia http://en.wikipedia.org/wiki/Mind_mapping). I'm not a programmer, so maybe it is too difficult to implement. But It would be great to have a mind mapping tool inside LyX. Something like the outliner, which let you organize the structure of a document, but in a visual, tree-branching way. I know that it is possible to convert some mind maps to latex (from kdissert or vym) and then load theme in LyX, but I am thinking of something more interactive, constantly linked to the text document, with which to work in any moment of the document writing. Kdissert (now becoming semantik) makes a good job, and can be used to generate latex article, book or slideshow documents, but it can't manage complex documents (e.g. cross-referencess, figures floats, etc). A mind mapping tool in Lyx would let to organize the structure of the document and the relations of the parts very effectively. Nodes of the map would be titles of sections, paragraphs etc, in LyX, while clicking would let to jump to the usual LyX interface, so to edit the node content, i.e. the LyX document, using all the capabiliites of Lyx. I think that such a tool would be of great value for most users, and hope that it could be implemented in some future release of LyX. Thanks for LyX and all the work behind, Davide