This document discusses the mobile-development paradigm and the impact of mobile phone penetration on economic growth. It provides several studies that found a positive relationship between mobile phone penetration and GDP growth. Mobile phones in developing countries play an important role in substituting for fixed lines and help improve market functioning by reducing transaction costs. The document also presents examples of income growth among farmers and traders in various countries that used mobile applications. It then shifts to discussing innovations in public service delivery through mobile and online initiatives in several countries.