K-r Measurbation Review at Optyczne.pl (Vs K-x, K-7 & D300s)

http://optyczne.pl/144.1-Test_aparatu-Pentax_K-r_Wst%C4%99p.html
(in Polish, Google English Translation Here)

And here are the ISO JPEG and RAW shootouts against the K-x, K-7 and the Nikon D300s:-

http://optyczne.pl/144.6-Test_aparatu-Pentax_K-r_Jako%C5%9B%C4%87_obrazu_JPEG.html

http://optyczne.pl/144.7-Test_aparatu-Pentax_K-r_Szumy_i_jako%C5%9B%C4%87_obrazu_w_RAW.html

As sometimes before, I won't "spoil" the results and you'd better to make your own findings by yourself! :-)