The only image sensor in the finalists list is Aptina AR1010 high-speed sensor. It appears to be quite similar to one used in Nikon J1/V1 mirrorless interchangable lens camera (Chipworks report). EDN explains why this sensor was selected:
"Aptina’s AR1010 is a high-speed, CX-format, 10-MP CMOS image sensor that is enabling a new class of consumer digital still camera. Traditional compact digital still cameras (DSCs) have the benefits of being reasonably priced and easy to use but are slow and use small-format sensors that provide a less than optimal imaging performance. The alternative has been for consumers to upgrade to DSLR cameras that are bulkier, more expensive, and not so easy to use, yet use larger-format sensors that allow the capture of quite high-quality images. The new MILC segment is taking the best from DSCs and DSLRs to provide a camera that is reasonable in size and price, yet uses a larger-format sensor for high-performance imaging. The AR1010 targets this MILC segment and does so with a unique high-speed sensor design to further advance the speed of image capture and eliminate the slow camera response. The AR1010 has enabled a leading camera manufacturer to introduce an innovative camera in the MILC segment and highlights the performance benefits and advanced features the sensor enables. Key benefits/features of this particular camera enabled by the AR1010 sensor are a large CX-format imaging array with high sensitivity (ISO100 to ISO6400); small and light interchangeable lens digital cameras; full HD video, 1080p; fast autofocus system; focal plane phase-detection AF + contrast-detect AF; 10fps continuous shooting, with AF tracking; and 60fps full resolution shooting."
