Saw demos of that a long time ago. It has potential, if the hardware can be nailed down to something sensable the whole neck pendant thing is not very practical for general use. Anyone that grows up with modern cell phones can text while swinging those thing around walking dancing driving even (scarey) Yet this type of device currently has to be in a very well known 'home position' for it to know what the user is doing or referencing, doesn't react well to the hustle and bustle of reality.