The company does not survey the carrier's own shops, which are major players in the Japanese cellphone market. In addition, number three, the Panasonic 830P is an almost one year old phone (last year's winter model) since superceded by two newer Panasonic phones, and the Casio W63CA is similarly an ancient (in Japanese terms) model.
Thus, to anyone who knows about the Japanese mobile phone market (such as anyone who reads my blog) the survey results are obviously biased towards bulk retailers and the people who frequent them rather than to the average Taro who frequents the carrier's own store on the High Street.
HTC are using the OKL4 kernel on their phones, which is derived from the L4 kernel that provides the trusted computing base for a number of large-scale European projects based around mobile and embedded trust through the TPM.
I wonder what it all means?
For God's sake, stop researching for a while and begin to think!