The problem with the ZonX isn't the hardware, it's that the hardware has no software. At all. Nobody's written any. Whatever hardware you make you'll still have to make the software so you may as well make it ZonX compatible too, as it'll just be a matter of changing port numbers. It would be cool to make some software for it, though, a simple tracker-esque thingy would be great.
EightyOne's AY emulation works fine as long as you don't touch the coarse registers, so you can only get the higher octaves. The "hymne" is all done using the fine register, so it plays perfectly.... but as soon as you touch the coarse register it all goes horribly wrong. Unfortunately writing a trackery program will be a nightmare without a working emulator....
