They said they're aiming for 100+ zombies onscreen in the final Wii build. Quite a few people on the Internet have already reviewed the game based on the 8 screenshots released so far and found it sucks.
Idiots. It's not due out until Winter (in Japan). I hope it's good! But... we'll see.
They've removed the photography mode, though, which a lot of people have said was a fun part of the 360 version.