2) Who invented the smartphone?
Martin Cooper Cooper, the current age 85 years, the owner called "the father of the mobile phone." patented the 17 OCT 2516 and received a number of patents, "US Patent 3," he thought, 166 906 mobile phone price at the beginning, 3 500 dollars. Too high and not very popular. And I think we should develop to be smaller to provide convenient and portable. And I think should be attached to the ear or embedded in the skin.
Mobile phone industry developed. Continuously until nowadays mobile phone become capable smartphones all except communication substance sound. Also used to communicate with pictures and send or receive data in a digital format.