The problem with the Notion Ink Adam's Pixel Qi screens apparently comes from the layer of stuff they put on top of it - I think the touch-screen layer. The PQ screens themselves are, by all reports, unobjectionable. I assume that the slightly inferoir quality of the EE e-reader screen compared to, say, a Kindle DX's, is also due to a layer of stuff on top, in this case for the all-important stylus input.

Life's full of tradeoffs.