Europe Building Their Own GPS

An anonymous reader writes "BBC News is reporting that Europe is planning to build their own satellite-navigation network that will be backward and forward compatible. There's going to be 5 levels ranging from free (1m accuracy) to commercial (1cm accuracy)! Provision is also being made for a search and rescue mode where a signal can be sent to confirm that help is on the way. The system will supposedly even work with existing US network after upgrades to the network."