A startup called RallyPoint has developed a sensor-embedded glove that allows soldiers to view and navigate digital maps, activate radio communications, and send commands without having to take his hand off his weapon. The company calls this input device Handwear Computer Input Device (HCID).

Keyboards and touchscreens sure are a problem in the war zone. Controlling gadgets with hand gestures makes sense. Voice control should work though too, I think.
More details on Technology Review. See also the RallyPoint site.