Logitech today announced two new mice that can be used almost anywhere, even on clear glass.The glass must be at least 4 millimeters thick, but I’d imagine it would be a little stressful to be computing on a table where the glass top was thinner, wondering if you’re going to press too hard and bring the entire tabletop crashing to the ground in a pile of glass shards.The Logitech Performance Mouse MX and the Logitech Anywhere Mouse MX use Darkfield Laser Tracking to achieve their goals and are supposed to be