Sony and Microsoft (especially Microsoft) might as well pack their bags and leave the Japanese gaming market altogether. Why? For one, Square Enix just announced that Dragon Quest X will be released for the Wii, probably sometime in 2010 at the earliest. That means Nintendo will struggle to manufacture the 948593485739485739485 Wiis it’ll need to keep up with demand.
Keep in mind that Dragon Quest IX, which is for the DS, hasn’t even been released yet.
And if you have no idea about this whole Dragon Quest nonsense, I suggest you listen to this Retronauts podcast from 1UP. Basically, the Dragon Quest series is as close to a money printing machine as a non-government entity can legally have. Whatever system has Dragon Quest is guaranteed to sell quite a few units. Perhaps more than that.