Saw this earlier today posted in Chit Chat by lytteltonwitch yesterday here... http://www.bookcrossing.com/---/538188 , and also on the sidebar there under "Latest News" to the right. Very exciting, indeed!!! : )
For anyone interested, at the overground station of Kentish Town West there is a bookshelf aimed at children and youngsters. It is not a OBCZ on itself, but I have left some registered books which I deemed adequate.
Just in case somebody wants to pop in, the bookshelf is right at the entrance, and you don't to pay if you are not travelling. There are not turnstiles.
Some children who pass by going to school or back pick books there, even if they are not using the overground.
Also, it is not only for children. You can leave any type of books, but in the instructions it was said to watch out what we were releasing, they didn't want very strong books there.