Sin runs great! At least in multiplayer on the demo. Haven't tested the full version
Soldier of Fortune has a lot of texture caching issues, doesn't blend the level's lightmap and also freezes after a while.
Wipeout XL/2097 is Direct3D but has a "exclusive PowerVR version" which is that but with blend modes changed appropriately. It refuses to run on anything else, and it's not SGL.
Mechwarrior 3 demo has additive rain and flares, and screwed up fog and explosion smoke, which is strange for something promoted to support PVR. What's odd when the PCX2 is detected, the game will try to force initialization on it even when PowerVR HAL is disabled, so I can't run this on my primary video card.