1. A pointing/input device for effecting two-dimensional and three-dimensional pointing and/or command input using a single imaging device operatively connected to a computing device having at least one processor and at least one memory, comprising: a housing; a first set of light sources disposed on a first surface of the housing, at least one light source of the first set emitting a first light color when activated; a second set of light sources disposed on the first surface of the housing, the second set emitting a second light color when activated that is different from the first color; a third set of light sources disposed on a second surface of the housing, the third set emitting a light color when activated that may be the same as or different from the first or second color; and one or more actuators for differently activating one or more of the light sources of the first, second, and third sets of light sources to provide a plurality of light source activation patterns corresponding to a plurality of pointing and/or input commands.