http://www.macnn.com/articles/02/07/10/kensington.studiomouse/
Kensington StudioMouse has scroll sensor
updated 12:40 pm EDT, Wed July 10, 2002
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Kensington introduced today a high-end input device: the StudioMouse, which combines "uncommon industrial design with sophisticated functionality to create acustomizable, professional-grade tool that makes work on a Mac simpler, smarter, and much more stylish." It features a Scroll Sensor, which replaces the scroll wheel with a multi-function, touch-sensitive strip as well as optical technology and three customizable buttons (using the MouseWorks software). The company is accepting pre-orders for the $60 device, but has not announced a ship date.
