As I wrote about previously here and here, Apple iOS on iPhone and iPad keeps a cache of crowd-sourced location data on your mobile device as well as on the computer that you sync your mobile device with. Today, Apple released an updated version of iOS that allows you to remove this data. Connect your device to your computer, fire up iTunes, and check for updates to download iOS 4.3.3.
While I am reading Apple’s Press Release website, I offer their official response to the iPhone tracking revelation: Apple – Press Info – Apple Q&A on Location Data. Short story: the supposed location data is a local cache of crowd-sourced location data that Apple uses to help your iPhone let you know where you are while providing Apple with additional information about location specific resources such as cell towers and wi-fi hotspots. With an update to iOS, you will be able to completely opt out of this by turning off Location Services, and for those of us who use Location Services, a future iOS update will stop backing up the cache and reduce its size.