Microsoft has let ActiveWin.com know of this new product being released this summer:

Wireless Laser Desktop for Mac is Microsoft Hardware’s first-ever desktop specifically designed for Mac users. With a Mac-centric legend, the Wireless Laser Desktop for Mac brings Mac users the ultimate in cutting-edge performance, comfort and style. This mouse and keyboard combination features a futuristic silver finish, making a mark on any desktop while providing the freedom of wireless control. It includes the following:

-Wireless High Definition Laser Technology Mouse: Provides ultimate accuracy, precision and control on any surface. This mouse includes a Tilt Wheel that makes navigating and viewing spreadsheets, documents and images easier and the new Magnifier tool for real-time enlargement of a document.