A tactile touch sensor, TTS, system comprising: a) a touch sensor array, TSA; and b) a TSA physical overlay, TPO; wherein: said TSA comprises a pressure-sensitive surface, PSS, incorporating row-column force detection; said TPO comprises a pressure contact surface, PCS; said TPO is configured to overlay said PSS when the TPO is placed on the TSA; said TPO is configured to transmit pressure to said PSS via said PCS; said TSA is configured to determine if said TPO is present on said PSS; and characterized in that: said TSA is an interpolating force-sensitive touch sensor, FSTS; said TPO is configured to exert a unique force profile when contacting said TSA; said TSA comprises a TPO detector, TPD, within the TSA configured to detect an identification, TPI, of a type of said TPO by detecting locations of features of the TPO based on the unique force profile of the TPO; wherein said features are surface protrusions present on said PCS; wherein said TSA further comprises a hardware computer interface, HCI, configured to interact with a user computing device, UCD, to automatically load an application software driver, ASD, on said UCD for interpreting said transmitted pressure based on said detected TPI of said TPO and to present one of a variety of graphical user interfaces, GUI, in response to detection by said TPD of said TPI associated with said identified type of TPO. a) a touch sensor array, TSA; and b) a TSA physical overlay, TPO; wherein: said TSA comprises a pressure-sensitive surface, PSS, incorporating row-column force detection; said TPO comprises a pressure contact surface, PCS; said TPO is configured to overlay said PSS when the TPO is placed on the TSA; said TPO is configured to transmit pressure to said PSS via said PCS; said TSA is configured to determine if said TPO is present on said PSS; and characterized in that: said TSA is an interpolating force-sensitive touch sensor, FSTS; said TPO is configured to exert a unique force profile when contacting said TSA; said TSA comprises a TPO detector, TPD, within the TSA configured to detect an identification, TPI, of a type of said TPO by detecting locations of features of the TPO based on the unique force profile of the TPO; wherein said features are surface protrusions present on said PCS; wherein said TSA further comprises a hardware computer interface, HCI, configured to interact with a user computing device, UCD, to automatically load an application software driver, ASD, on said UCD for interpreting said transmitted pressure based on said detected TPI of said TPO and to present one of a variety of graphical user interfaces, GUI, in response to detection by said TPD of said TPI associated with said identified type of TPO. said TSA comprises a pressure-sensitive surface, PSS, incorporating row-column force detection; said TPO comprises a pressure contact surface, PCS; said TPO is configured to overlay said PSS when the TPO is placed on the TSA; said TPO is configured to transmit pressure to said PSS via said PCS; said TSA is configured to determine if said TPO is present on said PSS; and characterized in that: said TSA is an interpolating force-sensitive touch sensor, FSTS; said TPO is configured to exert a unique force profile when contacting said TSA; said TSA comprises a TPO detector, TPD, within the TSA configured to detect an identification, TPI, of a type of said TPO by detecting locations of features of the TPO based on the unique force profile of the TPO; wherein said features are surface protrusions present on said PCS; wherein said TSA further comprises a hardware computer interface, HCI, configured to interact with a user computing device, UCD, to automatically load an application software driver, ASD, on said UCD for interpreting said transmitted pressure based on said detected TPI of said TPO and to present one of a variety of graphical user interfaces, GUI, in response to detection by said TPD of said TPI associated with said identified type of TPO. said TSA is an interpolating force-sensitive touch sensor, FSTS; said TPO is configured to exert a unique force profile when contacting said TSA; said TSA comprises a TPO detector, TPD, within the TSA configured to detect an identification, TPI, of a type of said TPO by detecting locations of features of the TPO based on the unique force profile of the TPO; wherein said features are surface protrusions present on said PCS; wherein said TSA further comprises a hardware computer interface, HCI, configured to interact with a user computing device, UCD, to automatically load an application software driver, ASD, on said UCD for interpreting said transmitted pressure based on said detected TPI of said TPO and to present one of a variety of graphical user interfaces, GUI, in response to detection by said TPD of said TPI associated with said identified type of TPO.