I really like the Kindle Paperwhite. I hope that E Ink gets their act together when it comes to color e-ink displays. If they get to the point where color variants are as reliable and affordable as their current monochrome displays, I'm sure Amazon will release a Paperwhite Color. Then I could use it for not only books, but comics/manga as well!
Plus it'd be great for illustrated children's books, and the display is much gentler on the eyes than LCD/LED.
Edit: I know E Ink has "Triton" color e-ink but from what I've read it isn't ready for primetime and is in need of serious work.