Add augmented reality direction hints over the front video stream on the screen.
Accurately calculated arrows should hover over the crossways showing the route to take and the name of the streets is shown directly in the video.
This eases real-world navigation a lot, as there is no more need to do interpretation from 2D maps to reality.
Similar functionality as can be seen in this video: https://www.youtube.com/watch?v=44myNm8T1Vw
(lightly edited by moderator)