This may be a stupid question for you, and sorry if it is but I have to ask.
The dual iso mode changes the way in which sensor is sampled, right? Since it reads every other line at different ISO. Would it be possible to change the way in which sensor samples the image on cameras other than 5DmIII so that we would get rid of the line skipping and kill moire? Maybe make the image sharper along the way.
if we were able to do it, we would do it ;)