Time for another neologism - 'flogging' - life-logging?
Charlie Stross has been writing about it for some time
http://www.antipope.org/charlie/blog-static/2007/05/shaping_the_future.html
I tend to take a hiking GPS set to 1 second sampling period whenever I go travelling (the log of the felucca on the Nile was interesting with the tack against the wind)
High-quality head-mounted cameras are expanding in niche markets
http://www.tacticalcameras.co.uk/Robocam.html
http://www.helmetcamera.com/acart/agora.cgi
and now device explicitly designed to record everything
http://www.cnn.com/2009/HEALTH/11/05/lifelogging.camera.memory.loss/index.html
just need cool early adopters to make wearers not look life idiots (taking a long time for mobile earpieces...)