I posted a couple of days ago, saying there were around 21 of these machines world-wide. Wrong. Click the link(ie click the title of this post) to see the current locations. University libraries are early adopters, in Canada and the USA, from Australia to Egypt, they are spreading very rapidly.
If you are an Indie Author there is a very direct interest here; you can list your books with them for any customer to get a real paper back copy anywhere there is a machine.
I'm in, as soon as I've posted this update.
Something definitely worth looking into is buying or leasing a machine, opening a bookshop.
Not sure of the cost, though someone mentioned 75,000 GB Poundsfor one. Not bad if you have a decent market to serve. One in the University of Toronto, another at Waterloo are the closest to me right now. Wondering about setting up in one of London's malls (Ontario's London)
Certainly going to try get my book(s) into their system.
This is absolutely the future of publishing and book retailing. Perfect combination of most of the advantages of ebooks and paperbooks.
For Indie bookstores this has to be the answer. Low storage and display costs, combined with a huge inventory.