http://www.macnn.com/articles/01/09/27/logitech.ships/
Logitech ships twin sensor optical mouse
updated 02:20 pm EDT, Thu September 27, 2001
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Logitech's new metallic-colored MouseMan Dual Optical, offers two to "deliver increased accuracy and precision on a broader range of surfaces." The $50 mouse has 4 buttons, a scrollwheel, and 800 dpi resolution for each sensor and is expected to ship later this month.
