When I arrived in Japan I suddenly remberred Prof. Schildhauer's talk who claimed that "everybody in Japan reads books on his mobile mobile. Well, I've never been there - but I had been told...". Not surprisingly that was not the case. Obviously, internet on mobile phones is common-sense but other than that it's not really all that different. Of course I encountered some interesting innovations, the toilet with integrated tap, the high-tech toilet with hot/cold shower etc.
What's also undisputable is the openness or addiction to games, that's not necessarly shot'em all but also entertaining stuff as virtual music.
I very much enjoyed the internet simulation based on ball paths displayed in Tokyo's innovation museum.
Overall, of course the availability of electronics is much higher than in Europe (see the 'electronics grocery-like booth'). Also the openess to use new devices appears to be there. It is argued that this attitude could be explained by the Shintoism which does not differentiate between lively and not-lively objects.
However, Japan is still not that technical advanced that the initial claim about reading books on mobile phones would hold, Japan is still also very traditional (as you can see on the black-board representing the digital display).