Thanks John (2 times) for pointing me to this!
Update: Polish site optyczne posted sets of sample pics taken with the EOS 70D at all ISO speeds. Some of the test scenes (bottles and pencils) have been used to test the EOS 650D, so you can compare them (scroll down to the sample pics).
Japanese site Digitial Life Innovator (translated) posted another video testing the Dual Pixel CMOS Auto-Focus of the Canon EOS 70D. There are also sample pics (original files available for download). I wasn’t able to understand (from the machine translated Japanese text) if they had a pre-production model of the EOS 70D (think so). However, the pics are all “out of the box” JPGs, and I think the image quality is impressive. They extracted frames from the video and made them available in a Flickr set.
It appears as if Canon made everything right with the EOS 70D. After long a true innovation by Canon. I bet the EOS 70D will sell very well, there is too much to love in this camera.