Researchers at the University of Southern California’s ICT Graphics Lab have created a new type of holographic display that can generate simultaneous 3D views for multiple observers without the need for special glasses. The setup also happens to be relatively inexpensive since it’s built around a specially modified off-the-shelf DLP projector that works with a spinning mirror.
Marvin: Marvin is an eBook reader for iOS with tons of customization options to help you read the way you want. It has hundreds of features such as annotating all content, can integrate with other apps like Google Maps and IMDb and integrates with the offline dictionary in your device. For Android, Google Play Books is a good alternative that lets you upload your own PDFs to read that you can access on multiple devices.