Really strange that this page has been picked up by Google, since as far as I know there isn't anything linking to it online.
To answer the question -- yes -- we have been working on this on-and-off for a while (two or three years?). It was originally designed to be a reference associated with various test questions, so that if someone kept getting answers wrong, we could point them to a page that would explain the reasons behind all of these things. Unfortunately, like most efforts at categorizing the Chinese language, it kept getting more complex and less usable....
Anyway, it is all database driven and so there is some material in there right now, but definitely not enough to be useful. So we are probably going to revive it at some time (when we overhaul the testing stuff), but not in the immediate future (next couple of months).