A bit presumptuous, yes, but I'd wager not for most people- out of the people I know who use tablets (mostly iPads), very few of them do any reading on them. Maybe the eInk bit would change that, I don't really know- the N2E is basically the first mainstream eInk tablet, so there's not a lot to go on.

However, for the sake of argument, let's assume that people do mostly read on their tablets. Unless B&N did something to the N2E that I'm unaware of, Android doesn't really do page-based scrolling. That's kind of what I was trying to get at with the horrible refresh rate comment- even if it can technically do email and social networks, it's not going to be a great experience (kind of like the Web on the Kindle). Here's a video of Angry Birds on the N2E, as an example: http://www.youtube.com/watch?v=k22BB8VPI5o

(Edit: I do seem to remember that the N2E has a web browser built-in, so, assuming that it has pagination, that would work alright for email/social networks/HN. Though, IIRC, it's a slightly hidden feature- even B&N doesn't want to admit it's in there: http://www.barnesandnoble.com/nook/container/standard_bothna... (#10) )