I just got the following mail:
Google Mobile Maps Location Reporting Reminder To protect your privacy we would like you to know that Google Mobile Maps is running on your mobile device and reporting your location. This is just a privacy reminder - if you did not enable this or want to stop reporting your location, disable location reporting in Google Mobile Maps location settings. Thanks, Google Mobile Maps Team
And I also got a broken link to how to stop that. So my question is, how do I stop that? Searching google wasn't really helpful.