Such is the social significance of mobile phones that when it comes to evaluating their use and planning new products and services, mobile operators and handset-makers cannot rely on the technology-driven, engineering mindset that has traditionally dominated the telecoms industry. Most famously, industry leaders expected people to embrace videotelephony, which flopped, but failed to anticipate the success of text-messaging. So they are turning to social scientists, and in particular to anthropologists, the better to understand how telephones are used.
http://economist.com/research/articlesBySubject/displaystory.cfm?subjectid=894408&story_id=9249302
Home truths about telecoms
Technology and society: Anthropologists investigate the use of communications technology and reach some surprising conclusions