When I’m in a coffee shop with my iBook I can sit anywhere and so do other Mac people, like next to the fireplace at the Starbucks on Mont Royal, with an iBook or Powerbook on their knees. That’s exactly why it’s so funny to see the PC guys running around to find a table next to a power outlet! Long battery life rules!!
(I haven’t looked at PC laptop specs much in the last couple of years so don’t go and comment with loads of them that contradict what I said, I know they exist. They just don’t seem to be around!)