DOOM 3: Low resolutions (640x480 High) ran 26% faster. We saw a 13% gains with 1024x768 Medium (no Shadows). Reason? Multi-threaded OpenGL is supported by Doom 3 in combination with the newest Tiger release. Doom 3 is currently the only app we know that takes advantage of this but don't be surprised to see patches for other OpenGL apps to appear shortly.
PHOTOSHOP CS2: Our MP2 action file ran 11% faster. We assume there are some improvements to Rosetta.