The industrious folks at Core Magazine have posted an interview with Namco's President, Youichi Haraguchi (translated from Famitsu).
There's not much new info here, but GameCube is mentioned a few times such as in this quote:
Haraguchi-san: As previously announced, we plan to release Soul Calibur 2 simultaneously on all three consoles. Outside of that, we're working on several GameCube titles which are targeted for early 2003. Development on the next chapter in the Ridge Racer series, for example, is coming along smoothly. It should be a great year for Nintendo's console, with the release of Mario Sunshine and Capcom's Biohazard titles.
Go check it out.