I ask, because when playing Ingress, my orientation is never even close to correct. I have to manually adjust the screen (while driving, ACK!??!) if I want to follow along with the route I'm driving, and of course the arrow is never pointed in the right direction which can make deploying resonators a little more confusing.
I'm also starting to get into geocaching, and without a working compass app, I have to carry another phone or an actual compass along with me. So spur of the moment geocaching can only happen if I happen to have one at the time.
And of course I'm sure everyone's heard about Sky Maps not working properly either, which is just a bummer.