It looks fabulous! What is it besides what looks like expensive materials that give it the big price tag? Is there some type of innovative sensor sitting on the underside?
I thinkn it's the first mouse in the world that could function like a remote and the new battery allows it to charge extremely fast and lasts along time. The new battery was incorporated into Logitechs Dinovo Edge keyboard and is pretty effective. A five minute charge is enough to last 24 hours. A 2 hour charge lasts a month. And, yes. There's a new type of sensor on the underside that's supposed to be extremely responsive.
