Amazon's Fire has a multi-perspective display that moves with you

Bezos said during the presentation that getting Dynamic Perspective ready for everyday users wasn't easy. "The key is knowing where the user's head is at all times," he stated, citing the need to have multiple cameras (remember those?) on the Fire to make the feature work properly. In total, the device has six cameras -- four of which have a 120-degree field of view and are used specifically for Dynamic Perspective, plus your usual front and rear shooters. Better yet, Amazon's making it easy for third-party developers to make their apps friendly with this feature: "The API was easy to plug into our device. We already had it running on a ton of Android devices ... If you have an Android app up and running, it doesn't take much at all."