GLaser Mouse first to work on glass

Well, someone finally invented a mouse that can work just as good on glass as it can a Mousepad. Some of you don't think that is a good accomplishment, but if you've ever tried to use a mouse on a fancy glass desk, you might appreciated the GLaser mouse.
The GLaser mouse uses a dual focus lens to make their optical mouse technology possible, and it comes in an artist's palate of colors. It also has a dedicated double-click button which I imagine would come in handy for all sorts of applications.
So far, no word on the price or availability.
Via Engadget