The new Dead Island trailer is pretty awesome. Supposedly the game is coming out this year.
Of course, there are like 4 year old trailers, when the game was supposedly coming out in 2008.
EDIT: This is the info they have posted:
- first-person melee combat
- 4-player coop
- weapon customization
- set on an open world tropical island
- RPG elements for character development
- hordes of gruesome zombies