"Robots get bookish in libraries" http://news.bbc.co.uk/2/hi/technology/3897583.stm . We might find use for these guys on the midnight to dawn shift, but probably not for creating user education on demand. Next thing you know, there will be copyright conferences discussing the legalities of having robots chock full of pdf documents running around digitizing and delivering on demand. Is there a mobile version of Ariel in our futures??