The document discusses four patterns observed in mHealth initiatives in the developing world and the lessons they provide. The patterns are: 1) information shared between patients is the most valuable healthcare information; 2) technology helps fill gaps in healthcare but humans are essential; 3) successful initiatives build on existing systems; and 4) understanding user motivation and meaning is necessary for behavior change. The lessons are to leverage patient communities, support human infrastructure, build on existing systems, and deeply understand user context.