Mouse on your finger

See this ring-type mouse that slips over your finger, removing the need for any mousepad in order to navigate through your desktop. Both the left- and right-mouse buttons are located on the opposite side of where you slip it on, while some form of trackball is located in another quarter underside. Looks like a pretty interesting device for portable computing, but it won’t be too precise when used under the gaming context. Pricing and availability are still unknown. keep wait………………