SNAP! I have just been looking at this very picture on Apartment Therapy! I still have your pinterest invite here if you want it too, just let me know :)
Thanks for sharing this link it has been a long week and this has cheered me up no end.
I just showed this to my son Jacob, who just had his tonsils out (and who usually has a fort set up somewhere) and he said he wanted to build one just like that. : )