I will be visiting Japan next month. Currently, I am considering buying an iPad Mini over there, since it is much cheaper. Though, I have some questions first, so that I won't run into any troubles: First, I read that the Japanese iPad Cellular is sim-locked to the Softbank carrier while in Japan, but that you can use any sim-card when not being in Japan. Is this correct? Second, can you even buy an iPad Cellular without a contract in Japan?