Screenshot from Apple's "Photos Every Day" iPhone 5 ad picturing a scene from the Yeah Yeah Yeahs performing at NPR Music's SXSW 2013 Stubbs Showcase. Screenshot via apple.com hide caption

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Festival attendees experiment with Leap Motion technology. Elise Hu/NPR hide caption

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Controlling Your Computer With A Wave Of Your Hand

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A screenshot shows how a team would track changes to its rocket project on a Sunglass platform. Sunglass hide caption

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