Behavioral impact of mobiles

This article talks about cultural differences in mobile phone use between Madrid, Paris and London. It's quite interesting to see how basically the same technology is used in different ways and how social norms develop to regulate device use.

"All socio-economic groups in London use wireless Bluetooth earpieces, while Parisians prefer hands-free systems that use a wire and can be tucked under a motorcycle helmet. In Madrid, almost nobody uses hands-free sets"

A mobile tale of three cities

Some other research papers by Dr Amparo Lasen are also available. (In particular the paper comparing the history of landline phones with mobile phones is interesting)