Asus Eee PC 1005HA

This netbook ticks all the right boxes - long battery life, portable, great keyboard (if a little rattly). But the main difference is that it does it with style. I have a white one, with a 10.5 hour battery life. The battery lasts about 9.5 hours with windows 7 starter, which is easily enough for a full day's use with wifi enabled. My only issue is that the first one I got had a 5 minute boot up time from fresh install of operating system, but this does not appear to be a common problem and the exchange system seems to be working fine.