Along with the planned file formats I'd really love the ability to export to XML.  In particular, I'd like to be able to export to ODF. 

At the moment, I have to provide documentation in an editable print version (e.g., DOC, ODF), but Wagn is a much more appropriate format.  Unfortunately, I can't switch them from print to Wagn, and I don't have the time to support them indepedently.