We demonstrate the design and implementation of a new versatile, scalable, and cost-effective sensate surface. The system is based on a new conductive inkjet technology, which allows capacitive sensor electrodes and different types of RF antennas to be cheaply printed onto a roll of flexible substrate that may be many meters long. By deploying this surface on (or under) a floor, it is possible to detect the presence and whereabouts of users through both passive and active capacitive coupling schemes. We have also incorporated GSM and NFC electromagnetic radiation sensing and piezoelectric pressure and vibration detection. We believe that this technology has the potential to change the way we think about covering large areas with sensors and associated electronic circuitry�not just floors, but potentially desktops, walls, and beyond.