Soul No Longer Burns on Xbox, GC
GamesIndustry.biz has the word that what was just speculation the other day is now fact. Soul Calibur III will be a PS2 exclusive title. From the article: "The new game, which is scheduled only for 2005, will add three new characters to the mix as well as a new character creation mode, allowing players to create their own fighters in the game."
Especially since SC2 sold more on the cube. Wait a minute...
the cosmos in 20 words or less: thumbuki.com
Sony's PS2 comes in last place for buyers of multi-platform games who have multiple systems. The Gamecube and Xbox "ports" tend to have nicer graphics, quicker loading, and so on.
Sony obviously benefits when a would-be portable title is released only on their system instead of two or all 3. There's also less lost development energy on a single-platform title in general (no porting and cross-platform worries), and it can make a big difference in the quality of PS2 titles (take Gran Turismo 4 or God of War for example).
Even if they aren't permenantly exclusive, just having the initial release on the PS2 is a pretty good bet that the PS2 version will sell the best.