YANGUYE, South Africa - On this dry mountaintop, 36-year-old Bekowe Skhakhane does even the simplest tasks the hard way.
Fetching water from the river takes four hours a day. To cook, she gathers sticks and musters a fire. Light comes from candles.
But when Ms. Skhakhane wants to talk to her husband, who works in a steel factory 250 miles away in Johannesburg, she does what many in more developed regions do: she takes out her mobile phone.
