New stuff for the gamecube and ps2 version of Pandora Tomorrow

All-new Jungle Mission - PlayStation2 and GameCube versions only!
Use Sam Fisher's entire range of stealth maneuvers to evade the enemy through a richly detailed Indonesian jungle setting.

Post-Mission Statistics and Scoring - PlayStation2 and GameCube versions only!
After each completed mission, get feedback on your performance: from the number of shots fired, to the number of enemies eliminated, even your time on each level. Take your score online and compare it against the best players in the world.

New Alternate Pathways in revisited missions - PlayStation2 and GameCube versions only!
Complete mission objectives through new pathways. Each new pathway offers its own gameplay challenges and rewards.

New Booby Trap Gameplay - PlayStation2 and GameCube versions only!
Disable explosive devices using a similar mechanic to the innovative lockpick gameplay.

ONLY ON PLAYSTATION2:

Distract enemy guards with your PlayStation 2 headset
Lure terrorists to a knockout elbow strike by whistling into your PlayStation2 headset.

The first game to use moving dynamic lighting technology for the PlayStation2
The ARGUS mercenaries' torchlight in the multiplayer is the first time a moving dynamic lighting source is incorporated into a PlayStation2 game. It is an awesome technical achievement.

Osea:

Podremos disfrutar de una nueva misión en plena jungla, habrá una pantalla de estadísticas al final de cada fase para que analicemos qué tal lo hemos hecho, tendremos también nuevas formas de superar cada fase, y habrá un nuevo dispositivo para desactivar trampas explosivas. Luego que en Ps2 en el multi se hara uso de luces dinamicas como en la version de Xbox (no en GC porque parece casi seguro que no tendra multiplayer).

Sobre si GC tendra un desarrollo especial para acercarse a la version de Xbox parece que no hay buenas perspectivas. Nuevamente estan a merced de lo bien que resulte la version de Ps2 y de esa se hara un port sin demasiados cambios.