(known locally as a 'lady health workers') have formed the backbone of the primary health care system for the past fifteen years. These women are members of the communities they serve and are responsible for 150–200 households (around 1,000 people) each. They provide primary health care with a focus on reproductive health and family planning. During the day, lady health workers visit women at t...

Proxy Lady is a mobile system for informal, opportunistic face-to-face communication, running on a PDA equipped with a radio transceiver. “Opportunistic communication” is anticipated by one party but it only occurs when the parties happen to meet each other. Proxy Lady supports such communication by providing notifications about possible “candidates for interaction” in the environment. The user...