Japanese developers would stick with a xbox not in their country anyways if they care about western sales.
MS already has the foundation there, so it wouldn't be hard for them to only send a few thousands units here and there to retailers in Japan.
They can also cut the price by a lot to the point where they make little to money off the 360 in Japan, since its a small amount of units sold it wouldn't be a big issue.
It's just that simple.







