Yeah, I thought about those. The OLPC is just too weird and outdated TBH, and e-paper devices (as much as I love them) are not reactive enough for active use like writing and editing. There's just no real option for now.
So what exactly is your goal? If you don't want anything that has advantages over a typical color LCD, then use driver settings to make it grayscale. Is that a 'fake' option?
sorry, a little late to respond, but no, that doesn't quite fit the bill. A native-monochrome LCD would actually have advantages over color LCDs because you have reduced bits per pixel, need less power per pixel, and actually increase the number of addressable pixels. E-paper displays are great for reading from but not good for interacting with in any active way. Pixel Qi is an interesting medium but I'm not sure it's quite there yet?
