Is it not obvious? Because they're facing stiff competition in the west with MS also releasing the Xbox1 this year, so they're prioritizing NA & EU knowing that they'll win Japan by default.
so it makes sense for console manufacturers to concentrate on areas where they will have the most success.And here I thought it was proof that they are "behind", "not ready for launch" or having manufacturing issues.
Thanks for clearing that up




You do realize the Japanese gaming audience has different tastes from the western audience. A lot of Japanese games never get released in North America.