Actually I know a little something about those things. Microsoft put out an experimental version of it about 10 years ago. It was called Sensecam and also took photos every 30 seconds. Early research involved taking seniors with various stages of Alzheimers on a trip, say, and testing their memory of the trip. Then they'd show the pictures (sometimes with narrative, sometimes edited http://research.microsoft.com/en-us/um/cambridge/projects/sensecam/memory.htm It's interesting to see that a version of this is now available to everyone at only $130. After the original research, no one seemed to know quite what to do with it. Now they do.Without any aids to recall, Mrs. B typically completely forgets everything about an event after five days or less. However, during the course of this period of assisted recall using SenseCam, Mrs. B’s memory for the event steadily increased, and after two weeks she could recall around 80 percent of the event in question. What is perhaps more remarkable is that following the two-week period of aided recall, Mrs. B appears to have a lasting ability to recall the event even without reviewing the images.