As Iggy pop, Ringo Starr and Bruce Willis recently implored, a name change is no bad thing. So the Idou becomes the Satio, and the Sony Ericsson gesture-gaming phone becomes the Yari.

The Yari is the first gesture-based gaming phone. It draws on the arm-flailin', good time-havin' concept of the Nintendo Wii for its control ideas.

The Yari boasts a 5-megapixel camera that allows the phone to track your movements when you're playing games. You can dock it on a bundled stand for side-to-side tennis and dancing games, or wave it in the air like you just don't care for other stuff.

Like the Sony Ericsson Aino , the Yari handset is currently only a prototype, but will most likely be troubling Father Christmas this year. Once you have the Yari, with its selection of preloaded games, you'll be able to access PlayNow, a kind of app store for games and music. If it's not clear how exactly you play with the Yari, click through our quick gallery for more.

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The Yari is a slider phone with little in the way of frills, but that just means there's less to distract you from your gaming.
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The Yari includes a 5-megapixel camera, which gives an idea of its mid-range market placement.
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The gesture-based games function is somewhere between the PlayStation EyeToy and the Nintendo Wii. The camera records your movements when playing tennis or dancing, as here.
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It's cooler than it looks, honestly. Look out for the boxing game, coming soon. This is still a prototype, but it'll probably be out in time for Christmas.
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