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GO Corporation was founded in 1987 to create portable computers, an operating system, and software with a pen-based user interface. It was famous not only for its pioneering work in Pen-based computing but as well as being one of the most well-funded start-up companies of its time.
Its founders were Jerry Kaplan, Robert Carr, and Kevin Doren. Mr. Kaplan subsequently chronicled the history of the company in his book Startup: A Silicon Valley Adventure. Omid Kordestani, former Senior VP of Global Business at Google, began his startup career with GO Corporation. Other notable GO alumni include CEO Bill Campbell (currently chairman of Intuit), VP Sales Stratton Sclavos (took VeriSign public as its CEO), CFO and VP of Business Operations Randy Komisar (became CEO of Lucas Arts), and VP Marketing Mike Homer (was VP Marketing at time of Netscape's IPO in 1995).
Though the company enjoyed high levels of public awareness and generally positive attention from industry press, it ran into fierce competition, first from Microsoft (whose Pen Services for Windows were later the subject of an FTC investigation and patent violation suits by GO), and later from Apple's Newton project, and others. The company lined up software development partners but struggled to deliver hardware and software on their intended schedule. In 1991, they spun off their hardware unit under the name EO Inc., and in 1993 EO was acquired by AT&T Corporation, who hoped that its devices would showcase their AT&T Hobbit microprocessors. This sale raised much-needed cash but introduced new problems, as EO then ceased to coordinate well with GO's management, even considering adopting competing operating systems. Facing a cash crisis, GO agreed to sell itself to AT&T as well, bringing the two halves of the company back under one roof as of January 1994.
GO's PenPoint OS ran on AT&T's EO Personal Communicator and computers from IBM and others, but despite some success in vertical markets, consumers never adopted tablet computing as enthusiastically as GO management had expected. (GO produced a 286-based lightweight "Go Computer" specifically for developers and evaluators; the company emphasis was that end users would run PenPoint OS on third-party hardware.) In January 1994, only two weeks after acquiring GO, AT&T decided to cancel the Hobbit product line, leaving it no reason to continue to support EO or GO. They had by then ceased to develop for other chips, and sales on the other platforms were small anyway. Co-founder Jerry Kaplan says that in its lifetime, the company generated "no meaningful sales". The loss of AT&T's support left GO with little chance of future revenue and, after burning through $75 million of venture funding, the company closed in July 1994.
On 29 June 2005, Kaplan filed an antitrust lawsuit against Microsoft, alleging that Microsoft technicians had stolen technology from GO that had been shown to them under a non-disclosure agreement.
In a separate legal matter, in April 2008 certain features of the Microsoft's Windows/Tablet PC operating system and hardware were found to infringe on a patent by GO Corporation concerning user interfaces for pen computers.
- Kaplan, Jerry (1999). Startup : a Silicon Valley adventure. Bridgewater, NJ: Replica Books. ISBN 0-7351-0141-8.
- Bortman, Henry (March 1991). "Computing on the GO". MacUser (Ziff-Davis Publishing Co.) (vol 7, no. 3): 202. ISSN 0884-0997. OCLC 300003271.
- "Startup," Jerry Kaplan, p.294
- Fried, Ina (July 1, 2005). "Go files antitrust suit against Microsoft". (Retrieval attempted and failed May 17, 2009, but the article is archived at "Go files antitrust suit against Microsoft (archive copy at archive.org)". Retrieved May 17, 2009.)
- "A New Antitrust Lawsuit - Go Corp. v. Microsoft". July 4, 2005. Retrieved May 17, 2009.
- Mintz, Jessica (2008-04-04). "Microsoft to Appeal $367M Patent Ruling". The Associated Press. Retrieved 2008-09-04.
- Barbarians Led by Bill Gates : Microsoft from the Inside. S.l.: Henry Holt & Co. 1998. ISBN 0-8050-5755-2. - Contains two chapters dealing with the GO story from a view inside Microsoft.
- IDEO - Company that helped develop the EO Personal Communicator, based on the PenPoint operating system.
- Annotated bibliography of references to handwriting recognition and pen computing
- Notes on the History of Pen-based Computing (YouTube)