The present disclosure describes various techniques that may be implemented to execute and/or interpret manipulation gestures performed by a user on a multipoint touch input interface of a computing device. An example method includes receiving a multipoint touch gesture at a multipoint touch input interface of a computing device, wherein the multipoint touch gesture comprises a gesture that is performed with multiple touches on the multipoint touch input interface, and resolving the multipoint touch gesture into a command. The example method further includes determining at least one physical simulation effect to associate with the resolved multipoint touch gesture, and rendering a unified feedback output action in a graphical user interface of the computing device by executing the command, wherein the unified feedback output action includes at least a graphical output action incorporated with the at least one physical simulation effect in the graphical user interface.