15. A computing system, comprising: a processor; a memory; a display; and at least one touch sensitive device interfaced to the processor and defining a touch area, wherein the memory embodies one or more program components of an application, the components of the application configuring the computing system to: present a graphical user interface using the display, the graphical user interface depicting a document, access data provided by the touch sensitive device, the data representing a plurality of simultaneous touches within a touch area of the at least one touch sensitive device; in response to a first touch input defined by at least one of the plurality of simultaneous touches, adjust an application control parameter for the edit command, wherein the application control parameter controls a visual characteristic for content in the document, wherein an editing tool modifies the content in the document using the visual characteristic, and in response to at least one second touch input defined by at least one other of the plurality of simultaneous touches, edit the document by performing the edit command using the application control parameter as adjusted in response to the first touch input, wherein performing the edit command comprises using the editing tool with the adjusted visual characteristic to modify the content in the document.
15. A computing system, comprising: a processor; a memory; a display; and at least one touch sensitive device interfaced to the processor and defining a touch area, wherein the memory embodies one or more program components of an application, the components of the application configuring the computing system to: present a graphical user interface using the display, the graphical user interface depicting a document, access data provided by the touch sensitive device, the data representing a plurality of simultaneous touches within a touch area of the at least one touch sensitive device; in response to a first touch input defined by at least one of the plurality of simultaneous touches, adjust an application control parameter for the edit command, wherein the application control parameter controls a visual characteristic for content in the document, wherein an editing tool modifies the content in the document using the visual characteristic, and in response to at least one second touch input defined by at least one other of the plurality of simultaneous touches, edit the document by performing the edit command using the application control parameter as adjusted in response to the first touch input, wherein performing the edit command comprises using the editing tool with the adjusted visual characteristic to modify the content in the document. 16. The system set forth in claim 15 , wherein the touch area is defined by a plurality of touch sensitive devices interfaced to the processor.