Where and how this is mounted is rather precarious, and would seem to block the target. Looks like a watermelon on the hood of a Buick.
Now if it were mounted on the side, and could be hinged out of a protective transformer enclosure when needed, that would be pretty cool. I tried looking for the app to download it to my iPhone, but no such app (yet?) Will have to wait and see. I could see making your own mount with the help of a machine shop, and using their app. This would also allow you to use the mounted iPhone for other apps. Weather, GPS, tracking other iPhones, pizza delivery shops. The possibilities are endless.