It seems the current generation systems aren't working for Linux yet, but that gives me hope to have a way to work with it at some point in the future.
At least 10 years ago, I imagined that the mouse could be replaced with something like a brainwave reader. You can train your brain to emit simple patterns that can be picked up either with a headband or remotely. It would take individual training, but with a few basic patterns, one should be able to do mouse movement and clicks. The eye tracking seems like the next best thing, especially since it is already implemented.
This isn’t correct. Talon supports eye tracking on all of Windows, Linux, and Mac with the same hardware.
If someone knows of such a device for Linux, I’d love to hear about it!
* The Tobii 5 does work, but is a work in progress and has some caveats until I do more work on it.