You're lost and alone with your titanium laptop on an ice floe in the Antarctic. The large Polar Bear which was pursuing you sits on the mainland a hundred yards away, eyeing you hungrily, chewing on one of your boots. You've already lost almost all feeling in your feet and hands... as you endeavor to pound out the words "I may be some time" on your G4, a chill wind freezes your fingers to the metal casing...