> It's hard to get worked up about the concerns raised in this article simply because I view where I'm driving essentially as public information (as almost all of my commute is on public property), and because the data collected is so clearly necessary for providing the features the app advertises.

That part makes sense - you're driving on public roads - but the article mentions a very long list of additional information that is collected on you. Most of which is not clearly necessary for providing the advertised features. That's the worrying part.