We'd heard about this for a while, but it looks like it's finally actually happening. 1up.com debuted the teaser trailer for DEXTER, a video game based on the hit original Showtime series. (And personally one of my favorite shows on television.) DEXTER will be available for PS3, Wii, Xbox 360, and the iPhone. No word on when the game will be released, but we're guessing in the Fall when the show returns with it's 4th season. Check out the teaser trailer below!