I don't know anything about the "Carta e-paper technology" other than what the ad states about it being more reflective. Perhaps if it really is more reflective it will take less LED light to illuminate the screen and perhaps that will improve the lighting. The lighting was horrible for my eyes in all the units I tried out, so I'm skeptical to say the least. I realize everyone has different eyesight and that the screen was acceptable to many, but not to me. The color blobs and fuzzy text that occasionally appeared was a headache inducer. I will most definitely wait until I see reviews here on MR from people I trust about whether the lighting has been greatly improved. If not then I'll pass again. I certainly won't be one of the early buyers this time around.

EDIT: BTW, the specs seem to indicate the same screen resolution as the PW original. Hardware-wise, unless the screen lighting is greatly improved this is a very minor update to the original.