In Japan, Osaifu Keitai[0] is a partnership between the major carriers (NTT DoCoMo, au, and SoftBank) that uses technology developed by Sony.
0: http://en.wikipedia.org/wiki/Osaifu-Keitai
In Japan, Osaifu Keitai[0] is a partnership between the major carriers (NTT DoCoMo, au, and SoftBank) that uses technology developed by Sony.
0: http://en.wikipedia.org/wiki/Osaifu-Keitai