For RE4 they ported the PS2 version to PC and initially it had no graphics shaders at all and looked even worse than the PS2 version. They also ported DMC3 and the controls were terrible but the graphics porting wasn't as bad. They really turned it around with the DMC4 port, maybe they can actually sell a few copies to PC users.

I already own the 360 version so I might download the full version when it's available; I think they might do the same for RE5 after it's been out a while.