Have any of you played this? Dmitry and I have been running through Co-op on hard I guess, and its really fun. I thought having 2 players would make it too easy, but we've been having some challenges. You can't trade weapons though, which makes it a little tough when we ran out of ammo a couple of times.
It plays almost exactly like RE4, except with a few different controls. It looks really nice I think, and the sound is good also. My only disappointment is that its only 6 chapters long, though so far they've been maybe 30-60 min per section of a chapter (5-1, 5-2, etc). The beginning few were shorter. Although we haven't beaten it yet, I'm pretty sure there's a Mercenaries mode, where you just kill zombies, that's co-op also.
I also read they're planning to release some adversarial multiplayer modes. One is like a competitive Mercenaries, and another you actually shoot the other players. I'm not looking forward to them so much, but it sounds cool anyway.
Also, while looking for that pic, I came across a topic where people think RE5 will come out for the Wii and be even better. RE4 was great on Gamecube, but RE5 is just awesome on Xbox360.