@raccoon maybe one less wire to a device farther away, might work? I don't know much myself but it looks like a PoE device would have to accept a minimum of 37 volts, so a separate device for stripping and downstepping for current devices (taking up more room in the project box), and I don't know enough about electronics if that could be cheaply miniaturized onto a future pi board. But yes, cool idea, less wires the better.