For researchers, this is the ultimate goal. Even the most skilled ethnographer knows their presence in an observed situation can change the dynamic from what might happen in his or her absence.
Smartphones, with their rich features, provide an opportunity for researchers to gather opinions or thoughts without the need to observe people in person. Instead of watching people as they do things, you could ask for a photo that captures their experience. Alternatively, you could ask people to document their thoughts through a video or a voice recording. With geotagging (and with people’s permission), you can get location information without ever asking for that information.
– See more at: http://www.visioncritical.com/blog/mobile-enabled-ethnography#sthash.Ft8Mlrxp.dpuf