In one embodiment of the invention, a hot spot is normally centered in an area of contact between a user's finger and a touch screen to position the hot spot on an icon or other feature thereby selecting a program or function corresponding to the icon or feature. When the contact area is near an edge,...http://www.google.de/patents/US6411283?utm_source=gb-gplus-sharePatent US6411283 - Computer touch screen adapted to facilitate selection of features at edge of screen
