There are two prototypes of CubeBrowser: The first one uses a plain cube with the motion tracker inside to control a 3D cube on a projection screen, while the second one has screens on all faces. The first prototype, despite being relatively simple, proofed to be easily presentable to a larger audience.
An experimental and novel concept like navigation by turning can be completely different on the paper than in the hand. Ideas are best evaluated in fast prototyping cycles. It is comparable to the browsing concept that was developed for the CubeBrowser: with each prototype iteration, you see more and can decide in which direction the project will develop.
SECOND PROTOTYPE
These images illustrate the making-of process the second prototype of CubeBrowser that incorporates six screens instead of wooden faces of the first prototype.