It's clear that battery life is an issue and that four motors require a lot of power, and need to be controlled by an electrical management system. A small gas motor can power a generator that could run the whole system for extended periods, much like the real drones of the military. Although vibration may be a bigger problem than it already is, it would certainly run a lot longer without the anxiety of a ten minute limit. Is anyone aware of a product like this that could run an electric quadcopter like the Phantom?