From “6 Products That Became Technology Roadkill“: “Back in 1987, GO Corporation was on the vanguard of pen-based computing, and investors handed the enterprise $75 million to make the world eschew the keyboard and mouse. In 1991, GO released its OS, PenPoint, designed specifically for the new market and it included gesture recognition. Not only was GO’s technology well received, but also it was implemented in several IBM computers, including the first ThinkPad.”

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“The Woodstock of pen-based computing”: