Thanks for answering so quick.
Glad you are trying to be as fair as possible with both big and little guys.
Another question, about how many Zero boards would a Pi be able to control and would it be able to control both the Zero boards and the Stickminers or separate Pi's for each? My first thoughts are both would work but with the Pi controlling fans it would be best to keep separate. But I know nothing about this, I understand that you might have to do testing before you might know. But just want to get the question out there.
Probably fan control will be on the board, done by a microcontroller also performing temperature measurement. Additionally our board should be capable of being controlled by any USB cgminer so the only limitation on driving miners is going to be the Pi's buggy USB stack. You could certainly have multiple miners per Pi but you may not be able to run more than about 10 or 20 reliably.
--
novak