This is a snapshot of the source preview I put up just before my trip to the Bay Area Lisp & Scheme Users Group in February, before I had shipped any products. Apparently someone was just trying to help me get more exposure. I have no problem with this, the attributions and links are all correct and it is a proper snapshot. As a reading / demonstration example, to get the feel of the system, this is fine. But I update the archive on my website every few days, and that's where you can find the latest version.