This is funky. Playing virtual tennis in real space with your cell phone. I love augmented reality technologies (see Greenflame: Augmented Reality, Children’s Books and Ritual), and the video clips at the HITL (NZ) web site have some interesting demos. (Just wish they were in Quicktime or MPEG formats – never know how WMV is going to perform on the old iBook)
See: Wired News: Next Game Controller: Your Phone and Human Interface Technology New Zealand (Videos).