BlindCompass is neat! My child told me that she had learned about the existence of compass implants and wants to get one. Would that be useful from your perspective?
Very interesting idea. I think it depends on precision with which that implant can communicate heading. If precision is 10 degrees or less, this can actually be extremely useful to visually impaired people.
Implants? Sounds too hardcore. But I remember some people talking about compass anklets; you put one on your leg and it gives a signal (vibration?) on the north side. They said it can greatly improve your orientation on a hike, even if you do not pay conscious attention to the anklet.
(This happened years ago, I do not remember more details.)
