So there probably IS a difference, albeit maybe a small one. I'm looking forward to read the first in-depth review!
If there is a difference ,even slight one then Canon PR machine would use it to full extent .Unfortunately if you look into their press release you will find nothing about IQ improvements,even something like "blah,blah new gapless microlens,improved Iso,IQ etc...... " Nothing, just nothing......... nada. Pity. Thanks NIKON for competition but seems like Canon dont care and all they offer at the moment is price increase.