“An engineer explained to us that hundreds of ear impressions were gathered in the name of research, and while each one obviously boasted its own unique shape and size, one single characteristic remained uniform across the board: the entrance into the ear canal is not a perfect circle, it's an oval.”
Now that we've thrown 'em off the trail, use the form below to get in touch with the people at Engadget. Please fill in all of the required fields because they're required.
It's pretty bleepin' confusing, but start here...
http://www.engadget.com/2007/12/21/did-you-make-an-engadget-comment-avatar-yet/
Ryan made a big "thing" about it at the time. Now it's kinda become what I call "folk-knowledge".
The process almost seems recursive.
Good luck. :-)