Thank you for posting this. As Daniel has mentioned there is perhaps a large amount of pent up demand for something like this. Is there no issue with using the PCB traces as contacts? I know this has been done in the 80's and 90's but it seems all the recent attempts (even here on this group) have failed to achieve popular success because of board thickness or some other issue making them unreliable. I hope yours does work.?
Also, OSH Park allows customers to buy boards on demand so it's possible for you to make it available that way and people buy direct from OSH Park and you receive some compensation. I'm not exactly sure how all that works though.
