While doing research on this new phone, we came across a lot of cool an interesting services that the Japanese enjoy that we don't have.
Check this stuff out.
Omakase Lock - Lock your phone just by contacting DoCoMo. You can lock your Phonebook and other personal data as well as the "Osaifu-Keitai" IC card function on your phone if you misplace or otherwise loose it.
PushTalk - PushTalk enables up to 5* people* (including the caller ) to participate in a single call. Calls between PushTalk compatible handsets can be made straight away as no application is necessary.