The devices which can be updated on Belle are includes Nokia N8, E7, X7, E6, C6-01. Yet we have no confirmation that this update will be available for all over the world at the same time or the nokia corporation will bring it out with a devision of region but as we take a look at the previous records of Nokia so the Belle update will be available all over the world at the same time. So no matter what ever the country you are living in, You can update your device just after the release of this OS update.