Rainbow Six 3: Multiplatform?

[Xbox Owner]

"The controls, interface and other game systems have been totally overhauled and optimized for the Xbox, PS2 and Gamecube. "

"And if all that isn't enough, you'll be able to shout the commands yourself using your headset and RS3's voice recognition technology. It can only be assumed that Gamecube owners won't have this option, unless Nintendo has found a way to hook up the Hey You Pikachu mic to the purple box. "

"While we can't comment on the PS2 and GameCube online components of Rainbow Six 3, over Xbox Live, it could be the game that one-ups Return to Castle Wolfenstein. You can play co-operatively with four players through the main campaign over Xbox live. "

http://xbox.ign.com/articles/426/426600p2.html

Did IGN screw up..or..?