That's something that concerns me. You're not supposed to use these things as a driving aid. You should be paying attention to the road ahead, not relying on your phone to tell you how fast you should be driving. It's bad enough with people driving cars that do more and more stuff for you. Pilots are required to do a certain number of manual operations to make sure they are still able to do it. It's worrying to think about what kind of people are driving around on the roads.