The mystery behind Microsoft Hardware's “Say Goodbye to Laser” teaser appears to have been solved, in record time. Readers of sites including Engadget and Gizmodo have uncovered references to and photos of a new Microsoft “Blue Track” mouse on sites including the German version of Amazon.com and the YouGame online store. Among other things, the logo on the front matches the image at the end of Microsoft's teaser animation.
Here's how the YouGame site explains the technology. (This is a rough machine translation from the Italian-language description.)
Microsoft is pleased to announce the launch of a new mouse tracking technology is revolutionary than optical that than lasers. ... Microsoft Bluetrack offers excellent performance and accuracy on most surfaces (raw wood, granite and carpeting included) allowing you to control your computer from anywhere you want. ... This mouse is ideal for notebooks for its small size. Its elegant design, the blue luminescence and metal finishing side will give an exclusive style. Accurate and fast, is rechargeable through the appropriate base.