Mobile technologies are revolutionizing access to information and enabling new forms of participation. Billions now have access to mobile phones, which provide affordable communication and information sharing. Examples show how crowdsourcing, anti-corruption tools, mobile banking and other innovations empower people in developing nations. However, challenges remain in reaching the poor due to infrastructure gaps, skills, costs and other barriers. Moving forward, local innovation and partnerships can further extend the benefits of mobile access to enhance human development worldwide.