I love my KV!
As I have said before, sometimes I see very minor differences in color on the screen, sometimes I don't. This leads me to believe that either my visual cortex is disintegrating or (preferably) that it is natural to see some shadowing depending on the ambient lighting and the way one holds the device. I usually forget about it within a couple minutes of starting a book so it's no big deal. I feel no need to buy another one until mine falls apart or there is an update of real substance.
As far as e-ink being as advanced as it can be, that is also OK with me. Except for color e-ink, I don't think the screen could be much better. But color?
