A computer readable medium storing instructions which, when executed by a processor of a mobile handheld computer, cause the processor to present a user interface including a touch sensitive area in which a representation of a function is provided, wherein the function is activated in response to a mufti-step operation including an object touching the touch sensitive area at a location where the representation is provided, and then the object gliding along the touch sensitive area away from the touched location irrespective of how far the object glides, wherein the function, when activated, causes the user interface to display user input controls at respective display locations that are determined prior to performance of the mufti-step operation, and wherein any user gesture that activates a function and begins with an object touching the touch sensitive area at a location where the representation is provided causes the same response.