Capabilities (Symbian Signed)/Location Capability
The Location capability protects APIs that reveal the location of the device, for example GPS
These APIs could be used to spy on people. The user can decide whether or not to install self-signed software that uses the location APIs, depending on how private they consider their location.
The positioning server checks this capability on APIs that can reveal location.
Any application that needs to determine the location of the device, e.g. mapping/navigation software. A new positioning system should check this capability, or be implemented as a plugin to the positioning server.