With MH3, Fire Emblem: RD, ToG, DQX, these two games, and the rumored Pokemon Wii game, how can anyone dispute that the Wii is THE home console machine for jRPGs this gen? The DS has everything else and more accounted for so safe to say Nintendo has the genre and Japanese games in general in a chokehold.
The 360 is dead in this regard. Its best jRPG efforts were all instigated by money hats, and even that failed to secure it a legitimate position in the Japan gaming market. While the PS3 has been unable to maintain its predecessor's legacy through the sheer incompetence of Sony.
In all honesty, I feel Sony is in danger of losing its grip on the industry, since it's clear the market can be satisfied by two home console manufacturers. Nintendo has the casual and semi-hardcore market at a lock, while Microsoft seems to have everything else. Nintendo simply needs to release comparable hardware to pacify certain third party Japanese developers and bolster relations with them, then I see no room for Sony in this game.