Woah!! + many internets, and I wish I could upvote you twice. I work in this area (kitchen TV right now) and had heard of the project a while back but forgot about it - this looks superb. The popular commercial alternatives (EP/Movie Magic and Gorilla) are made of fail, and I'm not such a big fan of Final Draft either.
After randomly dumping a bunch of day job (unscripted TV location plan data) and personal (2 feature scripts) into it, you've got yourself an evangelist.