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A new app just hit the iTunes App Store with the slightly unassuming name "Word Lens." You may think it's got something to do with typography or photography...but you'd only be partly right. It also instantly translates Spanish to English. What the app does is take the image stream from the iPhone's camera, apply real-time image processing and pattern recognition tricks to it, and it then "plays" with any text it finds in the scene before displaying it on the iPhone's screen.