Jade Signature, a luxury building under development in Miami, will include a communal teen lounge with the latest motion-sensor videogames, a computerized blackboard system and ping-pong tables.

WSJ: The New Luxury Kids' Rooms��WSJ Mansion

His company has developed motion-capture software that doesn't require the "ping-pong-ball-bodysuit" worn by actors in movies like Beowulf.

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