Abstract: An apparatus may include a protective shell to protect a head of a wearer of the apparatus, where the protective shell may include a void of material positioned to be proximate a face of the wearer of the apparatus when wearing the apparatus. The apparatus may additionally include a visual interface device located proximate a border of the protective shell and the void of material, and a controller to provide display signals to the visual interface device.
Abstract: A device for providing user input to a computer includes a base member with a tracking sensor for detecting motion of the base member and a vertical grip member that extends upward from the base member. A scroll wheel is rotatably mounted in the grip member and oriented so as to be rotatable by a substantially arc-like movement of a thumb of a hand holding the grip member.