Hardware needs more investment. It's hard work, requires significant seed money just to get rolling, and in my opinion is far more important than the latest web

Hardware needs more investment. It's hard work, requires significant seed money just to get rolling, and in my opinion is far more important than the latest web app or similar. It will be interesting to see how this goes. I'm certainly hoping that they can achieve something good. However, as others have said, ultrasound for wireless charging must be horrifically inefficient. It will be interesting to learn more when they've got something working. Not only are you contending with inverse square law (which can probably be negated to some extent by directing the beam of sound) but also losses due to air, losses in picking up the sound waves with a crystal and losses in converting that vibration into electrical energy. If the efficiencies are much below 80%, it'd be a highly impractical method for charging any high power devices. Phones would probably be OK, but laptops with large batteries really wouldn't be.