Bought one, sold it off. Unfortunately it's not really a 3D mouse, since your input control isn't position, it's force. So it's more like a 3D version of those nipple joysticks that you find on some laptops, but for your whole hand.
Sorry for the message, Zen Magnets, our company recently came across your video, ‘Never Let Go of Childhood Wonder’. We would love to discuss a potential opportunity. Is there an easier way of getting in touch?