A touch screen computer executes an application. A method of operating the touch screen computer in response to a user is provided. A virtual input device is provided on the touch screen. The virtual input device comprises a plurality of virtual keys. It is detected that a user has touched the touch...http://www.google.de/patents/US20060053387?utm_source=gb-gplus-sharePatent US20060053387 - Operation of a computer with touch screen interface
