Asus eee PC 1005PE-PU27. Not the PU17 or model. They have identical specs but the newer PU27 does away with the glossy finish, replaced by a matte finish. Screen is still glossy, however. Rated at 14 hours, so you should easily reach 10-12 hours.

I'm still waiting for the ultimate Netbook and have high hopes for various Ion2 models. I want similarly long battery life but with the ability to watch my 720P video full screen. So far with available netbooks you can get one or the other but not both.