Think of augmented reality apps, 2 vs 7 meters can be a big difference here if you are close to the "to be augmented" target. Also for OpenStreetMap this would

Think of augmented reality apps, 2 vs 7 meters can be a big difference here if you are close to the "to be augmented" target. Also for OpenStreetMap this would be great. This would get the accuracy down to "error less wide than a street" levels on customer devices.