My main issue with navigation apps is trying to get the info I need while walking. It's difficult to do this with a touchscreen device. BlindSquare's use of some headphone controls is one way, but I do miss the 1-button approach the Trekker Breeze GPS used. I know voice is tricky, but I'd like to see a navigation app I can just ask things like "Which direction am I walking?" or "What is the name of the street I'm on?" and get an answer while continuing or making needed adjustments without having to listen through 30 seconds of options I don't want. This would be particularly useful for exploring or just going out for a walk in a slightly unfamiliar neighborhood.

The issue isn't necessarily not enough information, but how to sort through all that information. If I am walking to meet a friend, I wouldn't need the GPS to tell me every single restaurant that is available. If I am looking for a restaurant, I don't need it to tell me all the clothing stores in the area. An important aspect of any good navigation system is having filters to control how much information that comes out, because it can be quite easy to get overloaded.

Have you tried Blindsquare before?

I'm not sure what would be lacking. With blindsquare and a good set of bone conduction headphones, I can get the information I need, while still hearing the environment around me. More accuracy would be nice. But that's a limitation of GPS technology itself, and not something an app could fix. Though apparently a new GPS system is coming out in the next five years or so, that will give us accuracy up to one foot. This would be a huge help in finding doors etc! I think it's called galileo? I'm not entirely certain; I heard about it in a podcast once months ago.