60 families have been tracked using sensors and software in smartphones to measure their movements, relationships, moods, health, calling habits and spending. It’s clever stuff and well worth checking out at WSJ.
“So far, these studies only scratch the surface of human complexity. Researchers are already exploring ways that the information gleaned from mobile phones can improve public health, urban planning and marketing. At the same time, researchers believe their findings hint at basic rules of human interaction, and that poses new challenges to notions of privacy.”



