This is also pretty easy to do today with an ear-piece and a Garmin. Heads up is only really helful for the edge-case that is not apparent. Ie, it helps you pr

This is also pretty easy to do today with an ear-piece and a Garmin. Heads up is only really helful for the edge-case that is not apparent. Ie, it helps you pre-visualize something. It might be something that is like a blind-corner + turn. Or it might be a confusing intersection (5-way). Or a left hand exit, et. This would help you set-up the right way ahead of time. Rather than just telling you XYZ at the last minutre. You need a time/distance dynamic lead-time tho, and it is this that current GPS systems suck at. The hard part is just getting the software right. It's a distraction if its not at the right-place + right time.