Attend any bike meet, looks like way ahead is phone mount for mobile with waterproof cover or have it in your jacket coupled with bluetooth earpiece / scala type device. Maybe not not as good to use for local amenities, but this method seems popular.
I also believe that any nav aid that is capable of speed camera warning / detection even if that part of the system is switched off in France is illegal. Hopefully our French members may know more on this.
I also believe that any nav aid that is capable of speed camera warning / detection even if that part of the system is switched off in France is illegal. Hopefully our French members may know more on this.