Creator of the PDA’s website here: https://orionpda.org/
More up to date video of improved prototype (without the computer voice)
Thought this was quite an interesting little device, particularly it’s screen has a much higher refresh-rate than e-ink, but with similar power-draw, allowing it to play video quite well (in black and white), and potentially making it an interesting platform to develop apps or games for.



I imagine it might be custom to this device, though possible it’s an off the shelf part.