D600 dust on sensor Nikon mentioned on dpreview.

First of all, I'm a Canon user, but I noticed on the dpreview news forum that Nikon has admitted the D600 has a dust issue after several months of silence. I'm sending this because I had a Canon 1DM3 that had a focus issue that Canon denied and finally came around to admit it. I wish these companies would step up to the plate when there's a problem.

Kent