As you said, your colleagues are working on using cell phones to verify if the teacher is present in the classroom, or the doctor is in the clinic. Why not use this for sending text messages for AIDS campaigns and other human development issues. One of the major problems faced by NGOS and international organizations in Africa is the problem of accessibility. If this can be solved using increased penetration of mobile phones, why not the World Bank work closely with the national governments in improving the mobile phone infrastructure in the rural areas as well. This could further strengthen the citizen empowerment schemes which the World Bank and other international organizations have been trying to do in Africa over the years.