is that it just won't run very fast.
Saw this on Reddit, quoted from a tech blogger:
"Just watched the demo video in this post (Flash required, alas). The Nook Color is so painfully slow it makes me embarrassed for Barnes and Noble. Horrendous scrolling and zooming and touch responsiveness. Just horrendous."
http://daringfireball.net/linked/2010/10/26/nook-color
And I noticed here that people said they ducked demonstrating the Internet browser.
I really hope they'll have demo units at the stores before the ship date (and be amenable to me bringing a PDF to load to look at).
I kinda like the nook color (though I was disappointed with LCD and battery life), but I'll only buy it if it works well.