Trick or treat! A Different Game stated via Twitter this morning that a (very) special announcement is in the works regarding their augmented reality game, Ghostwire. In case you’ve forgotten, Ghostwire is a DSi-only title which uses the camera to show a live view of the player’s surroundings as they hunt for ghosts. Using a variety of methods, the game determines what it thinks is haunted, and overlays images of the offending ghost, allowing the player to save them for further interaction. No concrete info has been released – no word on pricing, only an estimated release date (2nd half of 2010), and the publisher they have lined up hasn’t been announced. Could one or any of these things be the announcement on midnight of Halloween? Only time will tell.

@ghostwiregame on Twitter