No idea, but I assume you can just get into whatever driver interfaces the userspace Kobo software (IIRC, it's QT-based) is using. I can poke at the command line if you want to get some idea of what's there, let me know.

Certainly Koreader has no issues displaying what it wants to (and it does at least some level of e-ink-friendly regional updates).

Oh, and Koreader even runs on Kindle, very interesting! Thank you. I'll see if I can get that on my Kindle first, thanks again!

The PC emulator is worth a go too if you get into Koreader itself. Very handy for shortening the OODA loop over downloading to a target device. And the IRC channel is also useful.

Happy hacking!

Oh fantastic, I didn't know that! This is really exciting, thank you.