Kushleyev and Mellinger weren't in Cannes to swap business cards or brand strategy over flutes of grand cru. The duo have little interest in selling cell phones or mid-luxury sedans, or anything else for that matter. In fact, that's what makes KMel Robotics, their young startup, so unique: though they are a leader in their field, they aren't trying to sell their technology. Kushleyev and Mellinger specialize in quadrotors, those small, four-propellor hovering aircraft that can carry small payloads and, in the right setup, work together to perform complex tasks. KMel is working far enough ahead of the curve in this space that even Kushleyev and Mellinger have no idea what the killer application for their technology is--and they're fine with that.