Already Supporting Trophies

Buzz! Quiz TV: Trophy List.
PixelJunk Eden: Trophy List.
Super Stardust HD: Trophy List.
Uncharted: Trophy List.
Warhawk: Trophy List. 
NovaStrike: Trophy List
Pain: Trophy List. 

Will Support Trophies (At Launch)

Aliens: Colonial Marines: Source.
Alpha Protocol: Source.
Bayonetta: Source.
BioShock: Source.
Blitz 2: Source.
Borderlands: Source.
Call of Duty 5: Source.
Crash Commando: Source.
Dead Space: Source.
Endwar: Source.
Eye of Judgement: Source.
Far Cry 2: Source.
HAWX: Source.
Heroes over Europe: Source.
Killzone 2: Source (E3 demonstration).
Legend of Spyro: Source.
LittleBigPlanet: Source.
Mirror’s Edge: Source.
Mortal Kombat vs DC: Source (podcast 2).
MotorStorm 2: Source.
NBA 09: Source.
Project Origin: Source.
Quantum of Solace: Source.
Ragdoll Kung Fu: Source.
Resistance 2: Source.
Rock Band 2: Trophy List.
Saints Row 2: Source.
Shaun White’s Snowboarding: Source.
SOCOM: Source.
Söldner X: Source.
Stormrise: Source.
Supersonic Acrobatic Rocket-Powered Battle-Cars: Source.
The Godfather II: Source.
The Wheelman: Source.
This is Vegas: Source.
Two Worlds: Source.
WipEout HD: Source.
X-Blades: Source.

Will Support Trophies (Via Patch)

Battlefield: Bad Company: Source.
Bionic Commando: Rearmed: Source.
Brothers in Arms: Hell’s Highway: Source.
Burnout Paradise: Source.
Fallout 3: Source.
Ferrari Challenge: Soon.

Might Support Trophies

1942: Source.
Elefunk: Source.
fl0w: Source.
Heavenly Sword: Source.
Need for Speed Undercover: Source.
PixelJunk Monsters: Source.
Sonic Unleashed: Source.
Star Wars: TFU: Source.
Street Fighter HD: Source.

Unlikely To Support Trophies

Devil May Cry 4: Source.
Hail To The Chimp: Source.
Jeopardy: Source. 
Soul Calibur 4: Source.
Super Puzzle Fighter HD: Source.

Won’t Support Trophies

Alone in the Dark: Source.
Armoured Core: For Answer: Source.
Call of Duty 4: Source.
Civilization Revolution: Source.
Colin McRae DiRT: Email from Codemasters.
Disgaea 3: Source.
FIFA 09: Source.
Mercenaries 2: Source.
Naruto: Source.
Prince of Persia: Source.
Race Driver GRID: Source.
Rainbow Six Vegas 2: Source.
Ratchet and Clank: Source.
Ratchet and Clank Quest For Booty: Source.
Resistance: Source.

It's a shame Ratchet and Clank won't support them since they pretty much have it with the skill points,but unlike trophies, you can't show it off.

MGS4 isn't on any of those list.....grrrr

I think elder scrolls oblivion should be on that list, there's alot of stuff you can do in that game