Yahoo Japan is the number 1 search engine here in Japan. Google was pretty unknown until they released many localized services, for example Google Maps for Japan is really good and people is starting to use it. In Japan you can easily recognize when something is successful when it jumps to the “analog world”. In the old times there where many magazines about Yahoo, since last year there are also magazines about Google services and many books on sale.
By the way, yesterday I stopped by a bookstore and there were books about the iPhone! Is not even released in Japan and they are already trying to sell “Best tricks for your iPhone” kind of books.