If you fancy using your iPhone as a head-up display, here's the app to do it with.
Free for a limited time.
https://itunes.apple.com/ca/app/asmart-hud-+speedcams/id304564168?mt=8
Free for a limited time.
https://itunes.apple.com/ca/app/asmart-hud-+speedcams/id304564168?mt=8