If you check out the actual test you would see that they tested Canon, Nikon, Sony and the Leica. The Canon, Nikon and Sony images were almost identical and the M9 sharper. Some scaling was probably involved as the image sizes should differ a bit between Nikon and Leica.
My guess is that what we see is the absence of AA-filter which essentially means that we need more sharpening on DSLR trio. My polish is worse than my russian so I did not read the article just looked at the pictures.
I own various SLRs and an M8. The Leica wides wipe the floor with anything else. And any current SLR wipes the floor with the Leica on general usability, as well as being more reliable.
I just did a test with my D3x and a $100 Nikon 50/1.8. When sharpened, it looks just about like the M9 on a similar crop posted on the Leica forum -
If you want the Leica close sharpness, wide wides, miniature size, and Leica handling - which are all totally great - get the Leica. If all you want is quickly shot usable images, and occasional telephoto shots, and a camera which always works out of the bag, get a D700 or a D3x and enjoy the high ISO.