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A look at how motion control and exercise games are changing the way the world perceives gaming -- and making for healthier gamers.

Maybe you've seen them at your local video game shop: piles of odd looking plug-ins, add-ons, and thingamajiggers in the corner collecting dust, over-excited proclamations screaming from their worn boxes. Here are five gaming technologies that were ahead of their time -- and the lessons companies can learn from them today.