This would be a good test for a "pundit tracker". Before the iPhone was available in Japan a popular theme was that Japan already has great stuff and the iPhone might get a boost from the halo effect, but that it wouldn't be special. 72% seems pretty special.
e.g.
wrong: http://www.forbes.com/2008/01/15/iphone-apple-japan-tech-wir...
wrong: http://www.tuaw.com/2007/12/19/docomo-to-carry-iphone-in-jap...
right: http://www.wired.com/gadgets/wireless/news/2008/06/japan_pho...