1. A method comprising: receiving, by a computing device, an indication of a multipoint touch gesture that is performed with multiple touches at a touch interface; determining, by the computing device, at least one physical simulation effect associated with the multipoint touch gesture, wherein the multipoint touch gesture comprises at least one of an unscrunch gesture, a shove gesture, a pile fan-out gesture, a pile-to-grid gesture, and a crop gesture; and outputting, by the computing device and for display at a graphical user interface, a unified feedback output action, wherein the unified feedback output action includes applying the at least one physical simulation effect to at least a graphical output action in the graphical user interface.