Also, there seems to be a collectible card game (a la Magic the Gathering/Pokemon) coming out, check this page) for a preview! The official site is here, but it's in Japanese. The prophecy in the article at the bottom of this page seems to be coming true...
The go club that Hikaru, Isumi, and Waya play at in chapters 69 and 70 is real - the Dogenzaka Igo Salon near Shibuya station in Tokyo. There are some pictures but I can't find Hikaru anywhere! DaveSigaty
Yes - This was the club where I learned to play go. The only difference between the real thing and the manga (apart from me, obviously) was that Hikaru etc. seem to enter the club through the toilet :-) --Kokiri
Article on BBC-site: http://news.bbc.co.uk/2/hi/asia-pacific/2164532.stm ,and video
Article on Asia Week: http://www.asiaweek.com/asiaweek/magazine/nations/0,8782,132162,00.html
Article in Newsweek: http://www.msnbc.com/news/780055.asp (expired ?)