Title: Japanese mobile phone
"given that South Korea and Japan are both highly developed in terms of information technology and are culturally very different from America, responses from Korean and Japanese consumers could differ greatly from those of Americans"
Source: Mobile media use and its impact on consumer attitudes toward mobile advertising
By Jong Woo Jun & Sangmi Lee
International Journal pf Mobile Marketing
JUne 2007, Volume 2, No 1, page 56 & 57