The situation with the software is this:
There isn't much of it yet. I have verified the proper functionality of the entire hardware, seen a nice video output of a demo picture on the display, and that's pretty much all of it so far. I was originally planning to write a small Basic interpreter, or maybe port my own FANF shell (https://github.com/knivd/FANF), but then got carried away with other ideas and eventually forgot. Only today the board appeared again before my eyes, and reminded me about some unfinished business... ;-)
Anyway, the ELLO 16P bare boards are really cheap, and I have a few of them already made. Currently looking for place where I can stick them online, so everyone can get one for themselves.