>> NOTE: Both computers need to be connected and powered on for this to work (as each board gets powered by the computer it plugs into). It's not clear to me w

>> NOTE: Both computers need to be connected and powered on for this to work (as each board gets powered by the computer it plugs into). It's not clear to me what would happen in the event that only one of the two computers was powered up. Would the powered pico pass the mouse off to a dead pico at the screen edge and then have no twin to pass it back, leaving the powered machine with no USB devices?