Ars’ Casey Johnson in her review of the Nook Tablet:
The virtual keyboard suffers from the same major problem as does the Kindle Fire and every other 7-inch tablet: the portrait-oriented keyboard is slightly too big for comfortable thumb-typing, and the landscape keyboard is too small for ten-finger typing. I submit that, unless your hands are significantly larger than mine, 7-inch tablets are just never going to become e-mailing, note-taking machines. I’d rather try to type things out on my smartphone than a 7-inch tablet.