The document discusses the evolution of mobile technology and its potential application in libraries. It describes the development of 0G to 4G mobile networks and how libraries can leverage mobile access through services like mobile OPACs, databases, and collections. Some challenges to implementing mobile services in libraries are also outlined, such as small screens, slow connections, lack of skills and standards. The conclusion argues that mobile access could help libraries serve more users anytime, anywhere by overcoming barriers to information.