11. The non-transitory computer-readable medium of claim 1 , wherein the digital pen comprises a stylus for interacting with a digital touch screen digitizer.
11. The non-transitory computer-readable medium of claim 1 , wherein the digital pen comprises a stylus for interacting with a digital touch screen digitizer. 12. The non-transitory computer-readable medium of claim 11 , wherein the digital pen comprises an active stylus.