Fascinating.
From the article:
"However, I was surprised that a camera with an advanced 12mp sensor couldn’t produce pictures as sharp as the old 6mp Nikon D40, which was released late in 2006."
From the comments:
"Love my D40. I don’t know what Pentax is doing but when you can’t beat an entry level camera from like 3 years ago you have problems."
I'd say this comment is pretty spot-on. If the reviewer can't get sharper photos from the high-acutance sensor/AA filter combo in the K-x, he clearly has some problems.
Incidentally, all the photos he provides as examples of poor high-ISO performance look like the jpegs I get out of the camera when I've got both highlight correction on (which increases shadow noise) and shadow correction turned all the way up (which increases noise even more) and high-ISO NR turned entirely off, as well as the sharpening all the way up. If the D40
had such options, I'm sure you could easily make just as unflattering example photos with it.
I currently find this kind of amusing.