Awhile ago, I punched you in the eye with a tidbit on Microsoft’s mystery device. That device, as you’re probably aware, turned out to be the Arc Touch mouse, and it now seems that German retailer notebooksbilliger has jumped the gun on unveiling the product proper. Oh, it looks like they got hip. But that certainly won’t stop me from punching you in the eye all over again. Stick your ice packs in the freezer, guys. A typical 2.4Ghz dongle hooks up what is, surprisingly, one of the sexiest-designed Microsoft peripherals to date.  The Arc Touch is, of all things, bendable, flattening out for easy transportation…