Quite possibly the next evolution of touchscreen technology, this 3D interactive display can be manipulated and tugged at using human hands. The GHOST project (Generic, Highly Organic Shape-changing interfaces) is being spearheaded by the same European researchers behind Ultrahaptics emotion-transmitting machines.
The display surfaces are made out of malleable materials that are capable of transforming and retaining random shapes "so as to display output from the system or afford new actions." Users can also change the shape of the surface to for input purposes.
Various prototypes for the 3D interactive display already exist. For example, Emerge lets you pull as information compiled in bar charts so you can rearrange data or display it differently. The team is also experimenting with musical applications.