Xerte Desktop is no longer under active development and all development efforts of the main Xerte team is focussed on XOT. That said if you were to iron out any deficiencies in the documentation for Xerte Desktop and willing to share these with the community then we would find somewhere to host these.
After some consideration I've decided to also start using XOT exclusively. I don't have any existing flash content and figure its better to start with HTML5 at this point. Unlike most users I don't control the systems our content is used on. So I have no guarantees about flash availability.
That said I'm happy to contribute where I can. I've started by responding to some of the unanswered questions on the forum.
And will definitely contribute to the documentation also. Where do I send contributions to documentation?