I found an interview with Team Xbox interviewing Yoshinori Yamagishi from tri-Ace.
Since Star Ocean 1 through 3 were on the PSP, why the Xbox 360 for Star Ocean 4? And why call this Star Ocean 4 when it’s actually a prequel in a sense to Star Ocean, the series. Why not Star Ocean Zero? Is there a new direction that you’re heading in with the Star Ocean series in general?
Yoshinori Yamagishi: In terms of why the name Star Ocean 4, the development code for the title was actually “Zero,” since it is the origin of the Star Ocean series, but calling it “Zero” in the actual title, that title has such a negative connotations. We wanted to bring an actual numbered title, and that’s how we arrived at Star Ocean 4.
In terms of why Xbox 360…the simple answer to this is just that, when we started development on it, the Xbox 360 hardware was the only one that was ready to begin. The PS3 was not fully available at the moment to start development. That’s the honest answer to that.
