The trailer showed off a bit of co-op play, as well as a variety of different environments through which to romp. Pid is being built using the Unity engine (like that mystery Square Enix game, among many others), thus making its ubiquity across platforms all the easier.
While Boyes admitted the M&D folks don't have a publisher for the game yet, he said they've been actively speaking with publishers and are looking at an Xbox Live Arcade, PlayStation Network, and PC release in "the back half of 2012." Expect more details and the trailer tomorrow, on Joystiq, when the game gets announced "officially." Head past the break for a quick snap of the game in action.