[timdorr]

Thad's been walking about Georgia Tech and other places with a wearable computer since 1993. I remember how big his previous version was, but the current version isn't too bad:

http://3.bp.blogspot.com/_sqPHIOY4PBQ/TTtAjzFy6TI/AAAAAAAAAv...

http://hci.stanford.edu/courses/cs547/Resources/Pictures/tha...