Saw this idea mentioned in another thread but didn't want to hijack it by expanding on it there. Has anyone thought about actually using the keystrokes as a means of generating electricity? Could the springs beneath the keys be wired up as coils and tiny magnets placed inside so that inductance could be generated? Would the amount of electricity generated this way be to small to even bother with? Another possible way of recharging a battery could take advantage of the keyboard drawers many of us use. When the keyboard is slid back into it's closed position it could enter a inductance field. Basically charging each time it's put away but not having to worry about either connecting a wire or aligning it on some sort of exposed contact.