1. An apparatus comprising: an output display device on which two or more choices for selection are graphically presented; an input device which detects one or more input actions performed by a user to position, move, and activate or de-activate a control point on said display; and a processor coupled to the input device, and the output device, the processor comprising: a first component for displaying a graphical presentation of said two or more choices within a defined, bounded region on said display; a second component for defining one or more distinct segments of the boundary of said bounded region; a third component for uniquely associating each of one or more of said defined segments with a distinct one of said graphically presented choices; a fourth component for detecting an activation of said control point within said bounded region; a fifth component for detecting a subsequent movement of said activated control point such that said activated control point exits said bounded region; a sixth component for identifying one of said distinct boundary segments through which said activated control point is moved in exiting said bounded region; and a sixth component for determining one of said graphically presented choices based on said identified boundary segment.
5. The apparatus of claim 1 , wherein the relation between the lengths of two or more of said defined boundary segments is related to the relation between determined probabilities that a user will select each of said graphically presented choices uniquely associated with each of said two or more defined boundary segments.