I too find it extraordinary that this new sensor apparently makes no contribution to image capture IQ -- it appears to be more about hybrid AF. We have postulated all along that in order for it to appear "new" Canon would need to either bump the MP count or engage in a marketing thrust to re-educate the public as to why the new one is better. So far, the low noise marketing is aimed Digic 5 in-camera jpg processing which may very well be the (stills) target audience for this camera. So they are touting low noise in ways that most entry level photographers wont really know how to take advantage of, but will be thrilled to know it is there.
My impression is a large portion of xxxD owners use it as "P&S-on-steroids" w/ one or two lenses, so -
1. Autofocus in video would be a big benefit for them.
2. Improved JPEGs would be a big benefit for them, especially as many of them don't process raw at all.
I did a beginner's photography course that included 13 six hours meeting, split into 2 hours of photoshop, 2 hours with a studio photographer teaching the technical side of photography, and 2 hours with an art professor. Raw wasn'nt even mentioned.
3. I think - naively? - that xxxD body owners can be educated about photography, in terms of print size, ability to crop, and distance to subject. No insult intended, the average xxxD owner isn't shooting lions in a safari for national geographics.