Can you tell me you mail address, and if you have the prepaid courier account? and are you will to pay the sample fee, of course, it will be deducted from the payment when you place an order. Furthermore, pleae see the att 正在翻译,请等待... [translate] ...
Both of those also have the radio chips necessary to connect to Docomo - which is kind of like ATT over here: big, evil and expensive. To answer your question, MMS is push email provided by the carrier. Since SMS doesn't work between carriers here, most Japanese just use...
It makes no sense to buy the unsubsidized phone unless you are willing to use it without a contract and a data plan. Some people do this and use their iPhones with prepaid sims on AT&T or T-mobile (jailbroken and unlocked) but for the vast vast majority of cell phone use...