The Public Services Network (PSN) aims to transform public services by creating a secure and standardized network of networks, which is expected to save significant costs, including £130 million annually by 2014. It emphasizes innovation in service delivery by fostering collaboration across sectors and exploring new technologies, enhancing efficiency and customer service. Initiatives such as the BT Innovation Exchange and collaboration with local councils like Surrey County Council exemplify the efforts to centralize public services and achieve cost reductions through shared networks.