I hardly think any Japanese developer would team up with the XBOX, specially knowing they will face up Sony and Nintendo, two of the oldest and more cherrished companies in this country, or do I need to remember what happened when Nintendo left Sony to team up with Philips, here in Japan, that put Nintendo's name very low.
Here people is too nationalistic, and yes, they do love robots, but remember Final Fantasy games have always been the point here, just compare the sales of anime based games and RPG'S