Paypal which was Japan compatible for a few years now finally did a move to try to get Japanese people to actually use the service. They put it in Japanese finally. Even though there is a huge misconception that English is the international language of the internet you’ll find out how quick that concept flies when nobody in the country knows about your service.
Hopefully this will spurr young folk to try their hand at eccomerce. There are so many young people with various ideas & doing online transactions in Japan is not an easy task. So good luck Paypal 頑張って下さい。。