While the mobile sector has grown significantly over the last five-to-seven years, scale and sustainability have yet to be achieved. To further explore opportunities and barriers to investment and partnership to scale mobile-enabled technology, The Rockefeller Foundation has supported the work of Mobile for Development Intelligence, an open data research portal for the developing world mobile industry. The report, Scaling Mobile for Development: Harness the Opportunity, analyzes market and user data to provide a fuller picture of activities in the mobile sector and present recommendations on how to accelerate economic, social and environmental impact with mobile solutions.