[wtrk]

If anyone would like a lifelogging camera right now, you can purchase a Vicon Revue (rebadged/locked version of Microsoft's SenseCam):

http://www.viconrevue.com/product.html

It has a "privacy button" that stops it from taking photos for a few minutes and records other information along with the images (like temperature, for example). Also, all of the images and data are stored locally on the device.

Another lifelogging camera, with better specs, about to hit the market (Nov 2012 according to the register/buy page) is Autographer, from the Oxford Metrics Group:

http://www.autographer.com/

They are advertising 8GB of internal storage, so it would seem that they're storing the images locally too, though the device has bluetooth.