Source : AppleinsiderThe last beta firmware version of the iPhone sport a new feature which is currently praised: geo-tagging of photos taken by the iPhone camera. Such information could also be used in iLife or Pro Apple applications to either draw the map of a journey based on geo-tagging of your photos or/and help you to organize and manage your photo library.
To respect your private life, this feature remains an option and can be deselected.
[translation by Linathael]