Unfortunately I am way too busy lately and I feel I would only leech and not contribute, so better keep me out for now.

I have a very keen interest in the area however! What is most interesting for me recently is how exactly is such data represented in computer structures? Since I know that drawing example graphs and giving good examples would swallow huge amounts of time, I asked if the code is open-source so I could reverse-engineer the data model myself and not pester anyone. =)

I fully understand you not wanting to OSS it yet. I'll be extremely interested if you do that one day in the future.