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What was the first smartphone?
Who invented the first smartphone? What is the evolution of the smartphone? - Quora
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The first smartphones in the world
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O-LINE-O on X: "Interesting, isn't it? The first #Smartphone was invented 28 years back. The developments in smartphone technology in the last few years is truly amazing! #OLOFacts #OLINEO #IBM #FirstSmartphone #Facts #
Who invented the first smartphone? What is the evolution of the smartphone? - Quora