Got room for that, Halvar?
Meanwhile, more about beam spring vs. capacitative buckling spring identification from Dorkvader.
7bit does have something, as the layout is the same as some (many actually) beam spring keyboards. If you notice, though, the keycaps are cylindrical dyesub PBT of flip plate instead of the thick spherical doubleshot ABS of beam spring. The beam springs also colour the modifiers differently. Fun fact: beam spring keycaps are selectric typewriter compatible!
about the 104 "space unsaver" model F keyboards, you can take a 122 controller to make them work. We are still working on a general model F controller. This is made somewhat easier by the fact that it seems that all model F keyboards seem to use the same pinout to connect the capacitive matrix to the controller.
About terminology: IBM's term for beam spring key boards is "fly plate" their term for capacitive buckling spring keyboards (what we call model F) is "flip plate" and I don't know if they had an official term for the buckling spring over membrane "model M" technology.
Long story short: the "F" in model F stands for "Flip plate". I believe the M is for membrane.
The day we get these great beasts singing with custom controllers is one to savour, all right. I'd like to see what people made of my writing with one on my iPad.