Basically a vending machine where you select the book you want and it prints it out for you right there and then in minutes.
Here's an old (2009) article about such a machine.
http://newslite.tv/2009/04/28/vendin...s-any-boo.html
Places like Waterstones etc who are dying in competition with amazon and so on could make a killing with machines like these in their stores.
Did I miss something somewhere?