This concept of a GPS system for blind people is a really innovative idea. na:vi helps them to stay oriented in every situation without having to use the white cane or a guiding dog. This will be so useful for them, a really blessing. It is a clever combination of modern technology which includes guiding gyroscopes, laser range finder together with the GPS navigation with 3 dimensional user interface and elegant design. I hope this hits the market soon.

[Uni-ak]