Japan Mobile Users Survey
InfoPlant performed a survey of mobile phone users, carried out through the main menus of internet-enabled phones from DoCoMo, au and Vodafone which was at least somewhat focused on flat-rate data trends [.pdf in Japanese]. 16,833 people replied during the survey, 67.4% of respondents were female, and iMode users, Ezweb users and Vodafone Live! users were 57.4%, 20.9% and 21.7% respectively. WWJ subscribers login for the English translation.