With a flick of the wrist, residents of a futuristic home developed in Spain can browse Internet pages displayed on the living room walls, switch off a giant projected alarm clock in the bedroom or transform the entire interior into a busy streetscape or tranquil beach. It may seem light years ahead of current "smart home" technology, but this prototype apartment in Fuenterrabia, a city in Spain's northern Basque country, is far from the realms of fantasy. The technology used to create the interactive interior is the same as that already being used in video games. The team behind the prototype have linked projectors which beam interactive applications on to walls to Kinect motion sensors, developed by Microsoft for its X-box 360 console, thus allowing residents to control their environment simply by waving their hands. It seems to work like magic. In the morning, a wave at the wall will switch off the alarm and display your diary at the same time. If
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