Just bought two Power Gorillas a power pack that is a battery backup from a pc to most all hand held consols,phones etc. It comes with a protector case for the unit which is very slim and easy for storeage and carrying 4 diffrent types of mains plug adaptors and 2 seperate packs of numerouse adaptors to plug in variouse types of sockets on gadgets,phones,ipods and computers(Apple/mac laptops need an adapter from Apple) The power gorilla can run a Laptop between 2-5 hrs dependant on drawing powwr of pc battery.
This will be handy for those useing games consols or ipods on the plane.

Unit costs 129 plus p&p