Eternal Sonata also coming to the PS3?

The ESRB is bustling with rumors today with Tron, Art of Fighting and also Eternal Sonata. Way back at Tokyo Game Show 2006 Namco Bandai announced Eternal Sonata (aka Trusty Bell: Chopin's Dream in Japan) as an Xbox 360 title. According to the ESRB it looks like Eternal Sonata is coming out for the Playstation 3 too. Thinking back to the announcement, Namco Bandai never said that Eternal Sonata was an Xbox 360 exclusive, they just mentioned it was in development for the 360. There is a chance that Eternal Sonata might get a dual release 360/PS3 release, but another possibility is Eternal Sonata will be a time exclusive game on the Xbox 360 similar to Ace Combat 6: Fires of Liberation. If Eternal Sonata really is coming out for both the PS3 and the X360 would that change your mind about buying an Xbox 360 or encourage you to purchase a Playstation 3?