Apple patent app describes force-sensitive touchpads

It's no secret that Apple loves its touchscreens, and a freshly published patent application provides a little reinforcement to that belief. The documentation explores a method for tossing in pressure-sensitivity to touchpads in order to add functionality, or as Cupertino puts it, "a new element of control." Furthermore, it's noted that "force information may be used as another input dimension for purposes of providing command and control signals to an associated electronic device," and it goes on to explain how spring membranes could be placed under the surface to detect force. Notably, the verbiage tends to "describe a touchpad like those used for the company's MacBook lines," but it does leave open the possibility for the newfangled pads to be used in mobile / portable devices such as the outfit's own iPhone.