In the interview he talks about internationalization of user interfaces. While working in Africa he made the experience that translating text into local language and changing icons is not sufficient. There are other issues that people from non-western cultures have with computing interfaces. For example many of them have difficulties understanding hierarchies. Gary describes his approach to address these issues, which he calls Empowered Design. The idea of this approach is to create technology that allows people in Africa to create their own applications, rather than having researchers dictating which applications people in Africa should have.
Gary also introduces briefly some projects to illustrate his approach to mobile interaction design in Africa. One of the applications he mentions is Big Board - a public display that allows people to download media for free - which he also presented at the MobileActive08 conference.
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