I think my biggest problem with the new Nano is the price. I really like the looks of the black one but for that price you can get a 30 gig video iPod. The last generation, it was a $50 upgrade to get a regular iPod but this time around, its the same price. I know, the Nano is much smaller, flash memory so better for jogging, exercising and such, but still, I cannot justify spending $249 to get a black 8 gig Nano when I can get a 30 gig video iPod for the same price.
The battery life has never been a problem for me. I'm on campus for maybe 6 hours tops in one day, thats plenty of battery life. I plug my Nano in as soon as I get home and its plugged into my car whenever I'm on the road. I really see no situation where I would need 24 hours of battery life.
Brighter screen, again, no problem with the old Nano's screen. Not a good reason to upgrade for me.
Right now, the ONLY thing that really makes me want a new Nano is the box.
(Not really)
Oh well, enough of my b****ing, thats just why I'm not running out to sell my old Nano to upgrade to a new one.