[bluedino]

The Air's battery already lasts 12+ hours. How much demand could there possibly be for people to stretch it out even further? HyperJuice (and I would guess others) is already out there and I've never even seen one of those things in the wild.

[tim333]

The latest Air in ideal conditions does 12hrs. My friends couple of year old one managed to run out fairly promptly when using by the swimming pool where there were no sockets. He could be a customer if the gadget's good.