The Wall Street Journal added its weight to speculation that Amazon is preparing to launch a smartphone. The outlet reported late yesterday that the e-commerce giant has been showing off prototypes of the handset to developers, and it plans to take it public later this year.
What's really interesting about the device is that The Journal says its screen is capable of displaying three-dimensional images without the need for special glasses. And it accomplishes this by using retina-tracking technology that's embedded into four front-facing cameras...