(above) Oh, the Zooms are cable-actuated hydraulic. I can see the relationship between the cable and hydraulic cylinder; Weird, but if my memory is correct(?), I thought the early All-Packa I saw locally, had the piston right at the end of the cable and inline with it, but I could be wrong.

Regarding Shimano, I guess most bike makers get their Shimano parts directly, instead of through a distributor(?), as I would think that Bike Friday could use the same sources as local bike shops, who use equal or less volume of parts than BF.