Along the way several ideas have popped up, and some of them I'm very likely to explore. These are:

• A TeensieWI using the built in touch sense of the Teensy LC. This would also use the built in USB MIDI compatibility of the Teensy, and also draw power from the USB. I would use only touch keys and no joysticks or potentiometers, making this controller incredibly small. Thinking of sandwiching the components between two UV reactive translucent perspex sheets and put some UV/purple LEDs inside... just for the cool look :) More MPX5010GPs and a Teensy LC already ordered... :)

• A MiniVI, as in Valve Instrument, based on the EVI1000 and the Steiner MIDI EVI. Already begun writing the firmware for this.

• Built in sound capabilities. Possibly as a snap-on module for the MiniWI. I've bought a clever little MIDI synth chip programmed by fellow Swede Jan Östman, the dsp-G1. No problem to fit inside the already cramped MiniWI housing. Also got some small 5V amp boards and a variety of tiny speakers to work with.

• Instead of conductive tape, make metal inlays in the wood. A bit more work, but could look awesome.

• DIY kits? Maybe, if people want them.