Anyone interested in a USB to Fischer adapter? With an internal voltage regulator, you can run your devices using a standard cable in a rechargeable pack. The 4 pin Fischer is pretty much the standard port, though I could do Lemo as well.
That would depend on getting the pinout diagram for each end of the cable. I have Amps, might be able ti figure it out, Not sure how they would work with a phone though, the audio jack is normally output only, no mic input.