One more question for OP-Z owners - have you managed to make your OP-Z recognised by a MIO? When I connect mine with the factory cable, it doesn’t show up. My Keystep does; when I remove the Keystep from the MIO and attach the OP-Z, nothing shows up.
I’m sure I can get around it by running OP-Z as USB Host and connecting to one of the USB-B ports on the MIO instead, but I’m curious as to why the MIO’s not recognising it.