a method for navigating a pointer on a graphical user interface (GUI) includes the steps of: scrolling an input device to locate the pointer corresponding to the input device on a point of interest within the GUI, depressing an actuating button associated with the input device on the point of interest,...http://www.google.co.uk/patents/US7260789?utm_source=gb-gplus-sharePatent US7260789 - Method of real-time incremental zooming
