perhaps start with posting links to where you can find the OSHW logo for various cad packages

other than that, perhaps a dna analyser, and high channel eeg, both of those i believe are considerably expensive in the medical world, and slow down there progress a little,
for the industrial world, a HART to usb communicator would help out a whole mess of technitions rather than forking out close to 1 grand per modem, possibly even adding in other standard signals and communication protocols, ....
thats all i can think of off the top of my head, and these things may already have designs, and large parts of them do come down to software :/