PC World

Forget about typing, clicking, or talking; the interface of the future will be--literally--in your hands.

It was a typical Saturday morning, and my children were swinging nunchuks at each other again. Though my son and daughter go medieval on each other several times a day, I wasn't worried. They were just using the Wii.

The Wii's success is truly phenomenal. All but dead in the console race three years ago, Nintendo is now leaving Sony and Microsoft in the dust. (In July, Nintendo sold more Wii consoles than Sony did PlayStation 3s or Microsoft did Xbox 360s combined, The NPD Group reports.) The biggest reason, aside from its low price: its easily mastered, gesture-based interface.

"Gesture interfaces are the most natural, intuitive, transparent ways to interact with the digital world," says Michel Tombroff, CEO of Softkinetic, which makes gesture-recognition software used in games and other applications. In fact, gestures are easier for computers to handle than speech recognition, since they don't have to account for differences in pronunciation.

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