The battery has always been my #1 major complaint on the previous 4 gens. None of them ever got more than 2 or 3 hours of reading time with the LCD lighting set near the lowest setting. Very pathetic. The only other complaint has been that the touches are way to thin. They are difficult to hold, especially with the curved bezel and back and slick surface. I'm not a kid, I want a grown up device.
Oh well, I really didn't need to be spending more money on devices this year!