Originally Posted by Tbear 
I wonder what firmware version the camera PopPhoto tested is? Is it the production version? I doubt it. I imagine the results would be somewhat better with the best possible firmware.
They indicate it's one of the first "production camera" so I imagine it's firmware 1.00.
I think that the default combination 'bright mode" (==>colors off) + NR off (==> high noise) goes along way into explaining the rather poor notations...
These are just settings of course, real potential won't appear in any review, I'll wait for experienced photographers getting there hands on a production K20 to see how this baby sings (and make a purchase decision eventually).
But I am afraid that tests and charts won't show it's true potential (if any).