Pardon me for asking, but what is the history behind the Caiman? I understand it is a hand crafted version of another project - 7520? Did these start off as DIY projects by an enthusiast (Stanley?), or were they always commercial projects?

Again, are the designs confidential (though presumably can be reverse engineered) or are they open source? From reading posts here, it looks as though quite a few people know what's inside the box, and what might be tweaked a bit.

There seems to be an interesting interaction between Stanley's customers and him as designer/implementer. I generally work with software, and the concept of open source software is well established, but this does feel like open source hardware - at least a bit. In the case of software, really most people do leave the code alone, but it's always possible to read it and modify it if there is a real need, and sometimes that leads to interesting new developments. Maybe it's the same here.