
Japan is really ahead of the rest of the world. You can now pay for drinks with your cell phone. A scanner on the phone automatically takes money out of your account.
from http://uk.gizmodo.com/2006/09/29/

Halo 3 is by far the biggest Game in the world now, but in Japan for the most part they just don't get it. X-Box sales fall far behind Sony and Nintendo, and they prefer cute or fantasy games.