Quote from Section_Ei8htUm, the game isnt even out yet for PC. Those "comparison shots" are from a leaked beta that started appearing on torrent sites about three days ago. From what I hear, this leaked version does not support a mouse yet, just a keyboard. Some loser release group got ahold of the leak, schlacked on a quick windows gui for control configuration, applied their own serial (which is pointless because their nfo gives you their applied serial) and faked it as the real deal.
Correct me if I'm wrong, but I have not seen anywhere from anyplace official saying the game is released on PC nor have I seen the game on shelves. Wait before you criticize, because what you're seeing is a release groups childish attempt at getting street credit for a modified beta leak that they're passing of as the final build.
[edit]I did a little digging. Found out that this version seems to be the Japanese port of RE4 officially called Biohazard 4. BH4 apparently has been circulating the asian underground for the last 2 years and is just now making its way to EU and NA. Yeah, those threads have nothing to do with the Ubisoft produced Resident Evil 4 for PC.
I SO HOPE YOU ARE RIGHT =)