I have 1000HE and the battery life definately longer than NC10 and probably the longest battery life on netbook at the moment.
I get around 7 - 7.5 hrs with AVI with WI-FI on and i'm sure you get a bit longer when WI-FI off i.e. on the plane which i'm going to use it next week on 14hrs flight
It's a bit more expensive than NC10 but you get longer battery life, chiclet keyboard which very nice to type on, Draft N (stronger wi-fi), N280 so you get what you paid for and i think better value than NC10
edit: i use WIN 7
I get around 7 - 7.5 hrs with AVI with WI-FI on and i'm sure you get a bit longer when WI-FI off i.e. on the plane which i'm going to use it next week on 14hrs flight

It's a bit more expensive than NC10 but you get longer battery life, chiclet keyboard which very nice to type on, Draft N (stronger wi-fi), N280 so you get what you paid for and i think better value than NC10

edit: i use WIN 7
