Angry Birds was designed to be played on a device that fits in your pocket, so playing the game projected on a wall doesn't exactly feel natural. Throw a life-size slingshot into the mix, though, and things really get zany. The slingshot was on hand at the University of Queensland (Australia) last night, and had apparently been "months in the making." Details are scant, so we're not sure exactly how the slingshot communicates with the game, but however it works, it appears able to do its thing fairly well -- with only a brief delay after release. This slingshot appearance may be a one-time deal, so if you want to try flicking the bird on the big screen, Angry Birds for Chrome (and a mouse) may be your best option for now.