Via (http://www.reghardware.co.uk/2009/05/26/ghostwire/)

Developer A Different Game (http://www.differentgame.org/) brings ghostly images into reality via "Ghostwire" (http://www.differentgame.org/projects/1-ghostwire).

"Once you find the spirits, you document them and find out why they haunt our world. They can also give you riddles to solve." Imagine the possibilities.