The Oracle of Nokia

"The phones were part of a Ph.D. project by MIT Media Lab researcher Nathan Eagle, who handed out the devices as a way to document the lives of students and employees of MIT, ranging from first-year undergrads and MBA students to Media Lab employees and professors.

Eagle's Reality Mining project logged 350,000 hours of data over nine months about the location, proximity, activity and communication of volunteers, and was quickly able to guess whether two people were friends or just co-workers. It also found that MBA students actually do spend $45,000 a year to build monster Rolodexes, and that first-year college students -- even those who attend MIT"


Wired News: When Cell Phones Become Oracles