Uhm, no. I think you are confusing E Ink with e-paper in general. The one post you quoted,
this one, just made this clear.
E Ink is one possible technology to realize e-paper. But there are other technologies working on a solution, and one is "Reflex LCD", which is based on cholesteric LCD (unlike E Ink) and which is used by the FLEPia (I am sure now because I double checked).
You can read more about Reflex LCD here:
http://www.kentdisplays.com/advantages/advantages.html