Thought: Feedback can be turned to alternative input if inverted.
The mobile concepts are designed to provide different feedback mechanisms that are physical.
I’ve often written about the importance of feedback when operating all manner of devices and manipulation the environment for those with disabilities to compensate for a loss or lack of some ability.
The interesting thing about some of these projects that hit me is that maybe if you inverse the ideas behind these feedback projects you could actually change their function and use them as different, alternate input devices.
Just a thought.