Holy crap, I'm excited for this game. A two player co-op dungeon crawl experience? Count me in! The release date for this is June 1, 2011 for all PS3, 360, and PC. From the previews, it looks like there's gonna be a bit of hack-n-slash, and the archer elf chick seems to go into a third person shooter mode for her attacks.
Here's a gameplay footage:
When it comes out in June, I'll do a review for it.