Google has introduced its 'Latitude' software which can track mobile phones or BlackBerry type devices literally anywhere in the world.

Once activated, mobile devices with latitude software appear as a blue dot on a map. The system has raised concerns over privacy, but the potential benefits are obvious. Parents could for example gain peace of mind if they were able to keep tabs on their children's whereabouts.

Google has launched its 'Latitude' software with an emphasis on the 'fun' aspects of its implementation. Steve Lee, a Google product manager stated: "This adds a social flavour to Google Maps and makes it more fun."

Latitude requires a user to switch on the feature and then select who the information it provides is available to. With GPS on the user's phone the system is accurate to a couple of yards using the mobile network's existing infrastructure of masts and global positioning systems.

Having worked with charities who help victims of domestic violence on the privacy settings of 'Latitude', Google believe that the system will not be open to abuse. Users can accept or reject requests from others to track their position and also have the option of giving a city wide location.

Latitude will be available on iPhones within a couple of weeks and can already be added to devices running Windows Mobile, Symbian S60 or on BlackBerrys.