First thing you need to decide is if you want a tablet PC or a book reader.
The girlfriend and I just got her a Sony Touch from Woot after looking thru all of the available choices.
http://ebook-reader-review.toptenreviews.com/
She was looking for lightweight above most everything else.
I'll post when she actually receives it.
You have to use a nightlight if you want to use any eInk reader, btw.
If you want to look at webpages, the Nook can supposedly do that as well.
Also, the Nook is getting pretty consistent updates, as far as I can tell.
If you're not afraid of hacks, it seems that both the Kindle and Nook are "hackable".
If you're looking for a tablet PC; color, websurfing, etc., you might want to check out the IPad or wait for the PC guys to make something competitive. I wanna say HP has something coming out soon.
MM