I think it was only recently released, but it is a finished product that you can stick in the back of your console to load and games and homebrew software via USB. What would be great would be a software editor for loading synth programs (editing on the system would be cool, but more work, I think.
I looked up the midi hardware and it’s just an optocoupler and what looks like a hexinverter used as a buffer, I think it would be trivial to make your own cable so you can send MIDI into the SS.
What needs to happen now is for someone to release something like the software he’s using at 11 minutes in the video for setting up the synth engine, and something to parse MIDI, which I assume is fairly straightforward and part of the development kit since the system has a midi accessory and midi-based games, but who knows.
I’m really hoping Abrasive writes us back. He’s got a monotron on his desk, he’s definitely interested in synths.