Kentaro Toyama presented the closing keynote of MobileHCI 2009 with the title „Technology for Global Socio-Economic Development“. He gave an experience report of projects he works on in India. I liked especially that he included things that work but also discussed a set of myth with regard to ICT in the developing world (see Myths of ICT4D).
It is worthwhile to read more about his work, see Kentaro’s home page for more.