A portable electronic device displays a plurality of icons (e.g.,
graphical objects) in a region in a touch-sensitive display; detects a
predefined user action, with respect to the touch-sensitive display, for
initiating a predefined user interface reconfiguration process; and
varies positions of one or more icons in the plurality of icons in
response to detecting the predefined user action. The varying includes
varying the positions of the one or more icons about respective average
positions.