For now, I’m sticking with my Kindle (partly because I don’t have much choice), but I’m going to have pangs of jealously every time I have to get out of bed to turn off the light at night.
Amazon is winning in the e-ink category because of its ecosystem; no fancy new Nook is going to change that. That said, while this Nook does look interesting, I think the external light-in-a-case seems like a better solution. For example, I don’t see that weird dark line that appears on The Verge’s review photos across the top of my Kindle’s screen.
I use Amazon’s case with the built-in light, and have no complaints, except maybe for the price.