New sensor company with back-illuminated CMOS sensors

Image Sensors World linked to an interesting presentation from Caeleste, a Belgian company doing custom sensor design. In it, they mention a back-illuminated CMOS sensor with 3840 x 2160 6.5 µm pixels and 2 e read noise. I have no idea if this will ever see wide distribution, but it does suggest that the future for high sensitivity, low noise cameras is promising.