Ambient Walkman: Odd take on a potentially physicalyl looped instrument?

["RICK WALKER" <looppool@cruzio.com>]

This guy at MIT has developed a walkman with binaural microphones attached 
to it
that uses a chip which makes the ambient sound vocode synthetic sounds so 
that
everything you listen to creates music as you walk around.

http://web.media.mit.edu/~nvawter/thesis/index.html

I suppose if one walked around in a perfect circle at a constant speed in 
an 
ambient environment
with this instrument that you'd create a physical loop with the resultant 
sound.

I can't figure out how to contact him ,but if they aren't too pricey I 
want 
to get one of these.