March 25, 2016
Globally, many products and services are developed to serve people with lowest incomes in developing countries. Engineering for Change made a solutions library which gives an excellent overview of the state of affairs. TNO contributed at the basis of the framework.
If you are a designer or practitioner trying to understand what products and services are ready to be used to meet the needs of underserved communities then search, compare and contribute solutions in the growing catalog - http://solutions.engineeringforchange.org/
The solutions library is an open source archive of over 200 technology solutions from around the world that can be replicated and adapted across regions. The products are categorized in 8 topics: Energy, Agriculture, Health, Water, Sanitation, Housing, Transport and Info Systems.