This paper uses theory and empirical evidence to analyze the distributional effects of leapfrogging in mobile phones. The theory draws on earlier work on leapfrogging and Sen’s model of functionings and capabilities. The evidence draws partly on simple regression analysis. A key role is assigned to fixed-line telephony in reaching the conclusion that leapfrogging in mobile phones tends overall to be egalitarian in its impact on different developing countries. Mobiles however constitute very much the exception when it comes to technological relationships between rich and poor countries.