I'm working on separating out the knowledge base script functions into a separate library module. Could be AI::ExpertSystem::Simple::Knowscript, or something similar. I'm making it an object-based library, so you will be able to instantiate multiple knowledgebase objects. This will also provide some flexibility in choosing alternate inference engines, since the knowscript object will be able to output alternate knowledge formats.
I'm also working on an editor for query libraries, per-attribute visualizations (to side-step memory limits in Graph::Easy), better syntax highlighting, and various other new enhancements. I'm also going to start a rewrite soon to "beautify" the code a little, and make it all look like less of a hackjob.
Over a dozen people have downloaded the software so far, and I would love to hear some feedback about it. Send me an email and let me know what you think.