Battery life is the key to mobility

There are of course many factors when it comes to mobility, but battery life tends to be the Achilles heel for most devices.  Today for the second time I left the NC10 unplugged inadvertently at my desk.  I did not use it that much directly (more in ambient third screen mode) and only discovered it was unplugged at the end of the day when I went under my desk to pull the cord.  Yesterday I actually did the same thing, but realized when the system refused to update the BIOS without a DC connection. 

Now on the train home I see I’ve got about 35% or about 1:16 left to run at this current brightness (3 of 8) and activity (Firefox, Tweetdeck, Windows Live Writer and iTunes) level.   I only woke the system from sleep once after an extended away period in a meeting which is killer considering any other laptop I’ve used would absolutely have been dead by lunch.