Thanks
Have you thought of a way to publish such a graph on the web, either publicly or privately?
The one stumbling block I realize I have encountered when I have looked at similar programs previously is that there is no good way to share my map or linked notes with a colleague or client. I would think that most academics or proessionals using something like this would want to share their work product with a student or another professor or as a post on a discussion forum or with a client etc. It looks gorgeous but if only I can see it (or if other people have to set up special software to see it) then that limits its use considerably.