Thanks for the link.
Quote from the page: "The heart of the detector is made out of a thin film of aluminum on a sapphire substrate. The aluminum is etched by standard photolithographic processes to form a meandering strip. When cooled to near absolute zero (less than one kelvin), the aluminum becomes superconducting. Like the vibrations of a tuning fork, current in the aluminum strip oscillates at a resonant frequency."
Seems like even the technology matures, we won't be seeing it implemented on DSLRs...unless scientists can find another way to tune CCD pixels to particular wavelengths at room temperature.
Anyway, since each pixel can only be tuned to 1 wavelength, Bayer mosaic is still required for single layer sensors. The only thing that can be eliminated is the RGB filter array that is used in conventional CCDs. The colour for each pixel still has to be interpolated from the surrounding pixels.