Feast your eyes on the amount of battery life I was projected to get from my Lenovo X200s today:

Close up of the battery meter

Granted, I probably won’t end up getting the full 15 hours. That came up while viewing a PDF in class with wireless off and the screen at fairly low brightness. In normal use I probably get only 8-10 hours.

You know, only 8-10 hours for a dual-core laptop with 1440×900 screen and 4gb ram. In a well-built 3-lb package. Gotta say, I do love this little laptop.