This just came out today..
Canon U.S.A. : Professional Imaging Products : XC10 (http://www.usa.canon.com/cusa/professional/products/professional_cameras/uhd_hd_video_cameras/uhd_video_cameras/xc10#DriversAndSoftware)
It dampens the rolling shutter issue....which is a bit funny because when we flew the XC-10 on the DJI Octocopter, we didn't really see any rolling shutter...so, they have made it even better!

Jim Martin
EVSonline.com