Placing a Student in a Developing Country

An exceptionally talented student of mine would like to spend next summer doing something techy in a developing country. He knows Linux and networking better than I ever will, works very hard, is perpetually cheerful (at least around me: maybe it's sort of a dipole effect), and would be an asset to any team lucky enough to get him. We've had a few general pointers ("Why doesn't he do something with OLPC?"), but if you have something more specific --- a name and an email address, for example --- please get in touch.