A system and method for processing input from a touchscreen having a
substrate and a touch surface thereof, adapted for manual interaction
with a human hand, having an electronic sensor associated with the
substrate adapted to detect a pressure sensitive response to at least two
concurrent touches on the touch surface, having a control which receives
at least one signal representing the at least two concurrent touches on
the touch surface; processes the at least one signal in a manner adapted
to maintain a distinction between the at least two concurrent touches;
determines a respective difference of at least one coordinate between the
at least two concurrent touches; and responds by selectively producing a
response at least in dependence on a relationship of the coordinate of
the at least two concurrent touches.