When mobile network operator (MNO) Safaricom launched its M-Pesa mobile payments system in Kenya seven years ago, few business models were as ripe to explode. With extremely high mobile penetration rates, a high proportion of unbanked households, a regulatory system that allowed telecoms companies rather than banks to lead the way, and a migrant population suffering from expensive domestic remittances, it is little wonder that more than two-thirds of Kenyan adults use the service today. But the service, which has also been quite successful in Tanzania, is not just the continental leader in mobile payments.