“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.”
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Great find.
iRobot Chairwoman Helen Greiner said at the second quarter conference call that three companies have been contracted to come up with add-ons to Roomba, and that its possible one of the upgrades could be available this year:
http://robotstocknews.blogspot.com/2006/09/irobot-goes-wifi-upgrades-to-roomba.html