10. The system of claim 9 , wherein the processing unit is further operative to, upon determining the received first input is scribble input intended to test pen attributes, provide one or more selectable alternative pen attributes for further input.
10. The system of claim 9 , wherein the processing unit is further operative to, upon determining the received first input is scribble input intended to test pen attributes, provide one or more selectable alternative pen attributes for further input. 11. The system of claim 10 , wherein the processing unit is further operative to receive a selection of an alternative pen attribute and apply the selected alternative pen attribute to the input device.