The A-cam project looks like it might be finally nearing completion with some details on the prototype testing. There are some dng files for download as well as some initial footage on vimeo.
http://www.ikonoskop.com/blog/a-cam-dii-prototype-21-delivered-to-nick-paton-acs/
http://www.ikonoskop.com/blog/a-cam-dii-prototype-21-delivered-to-nick-paton-acs/