An excellent article about the most recent tempest over any-and-all-things-Apple. Users of mobile devices form other vendors should be concerned about the same issue. In this case the problem is that the data isn’t encrypted. There are indeed legitimate concerns, and Apple should absolutely release an update that encrypts this data, and gives users greater control (more granular options) over what is stored and for how long.
But it’s important to note, “it is not secret, malicious, or hidden. Users still have to approve location access to any application and have the ability to instantly turn off location services to applications inside the Settings menu on their device. That does not stop the generation of these logs, however, it simply prevents applications from utilizing the APIs to access the data.”