Asus netbook-which is better?

I've been researching the MANY netbooks out there (was going to go for a tablet, but I need to work on the road), and have narrowed it down to Asus Eee PC 1015 PN-PU17 or the PEM -PU17. The first has up to 9.5 hours of battery life and the Nvidia ION graphics GPU. The other up to 13 hours of battery. I know these estimates won't hold up; and I need something very portable that I can run Office & maybe Photoshop on, and maybe Netflix & YouTube. Does Nvidia make a noticeable difference? The display is not HD. The PN can connect to HDTV (not my main concern). I'd like to watch movies or video on the netbook. Any thoughts or recommendations? I have to travel for work & will be stuck in meetings, and would like something to last the work day. My Dell laptop was too bulky (tried traveling with it, ugh!) at the airport. (It stinks, too!) These new Asus netbooks have dual core processors as well. This will not be my main work computer, just back up when traveling & maybe some entertainment value would be nice. Which would you choose? Or would recommend something else? Thanks. (As for price, I have to charge it, so it is what it is!)