Chipworks published a report from 2013 Image Sensor Conference held on March 19-21 in London, UK. The report is written by Ray Fontaine and goes into great details on two presentations - Howard Rhodes' (Omnivision) and Junichi Nakamura's (Aptina) ones.
Omnivision develops its third generation BSI pixel based on 55nm process and prepares the next generation 45nm process to be ready sometime in 2014. A switch from Bayer CFA to Omnivision's proprietary "Clear Process Technology" with panchromatic pixels is said to improve the low light SNR by 6dB.
Aptina's presentation talked about high frame rate sensors and advantages it gives to the camera. The latest 10.8MP 1-inch sensor with 80fps speed features 3.4um dual conversion gain pixels and 13b column parallel SAR ADC.