[citation][nom]sna[/nom]means you can fill any empty space in the device with a battery extension ...the main problem of the batteries is that they must have rectangular fixed place empty ...now you can "squeeze them where ever u want ... and make the Battery itself into shapes and different thicknesses[/citation]
the bigger problem is they put a good enough battery in the devices, and try to make them thinner. sure, devices use less power now, but they are also thinner and get lesser and lesser batteries.
i can see this allowing even thinner devices, but at the same time, getting lesser battery space as a result, and having them be just good enough.
besides cramming more battery into space, is there any other application?