Just selling books? Who does that anymore? 

Amazon is reportedly prepping the unveiling of a glasses-free 3D smartphone in June. The device, according to rumors, will be able to track a user's retinas by using four front-facing cameras that will create a 3D environment without the need for glasses. This technology will also let the user scroll through pages by just using their eyes. According to the Wall Street Journal: 

The 3D screen technology can sense the movement of a person's eyes and whether the screen is moving closer to a user's face, according to people familiar with the matter. In response, the phone will be able to automatically zoom into images as it moves closer to a user's face and could manipulate text and images as a person moves the phone.

Is the world ready? Maybe we'll find out soon enough.

[via WSJ]