UPDATE 20100411
The Triumph of the Ordinary Cellphone by ANAND GIRIDHARADAS
http://anand.ly/articles/the-triumph-of-the-ordinary-cellphone & http://www.nytimes.com/2010/04/10/us/10iht-currents.html
http://www.nytimes.com/2010/01/31/business/31unboxed.html?scp=1&sq=sensors%20cens&st=cse
http://research.cens.ucla.edu/
But phones as sensors can also distract from reality – a societal paradigm shift
http://www.msnbc.msn.com/id/35516835/ns/technology_and_science-washington_post/
