
When did Trophies begin I wonder? I was just thinking lately of which PS3 games of mine had trophies and which didn't. I might try some trophy hunting like I've been doing with achievements on 360.
I'm going to answer my own question by looking at Wiki. Trophies began in 2009, so anything before that doesn't have trophies. There are a handful from 2009 that also don't have trophy support. Most notably for me in this list are games like: Valkyria Chronicles, Lair, Haze, Heavenly Sword, Folklore, Untold Legends: Dark Kingdom, and Resistance: Fall of Man.
Oh cool. The guys who do Xbox360achievements.org also do http://www.ps3trophies.org They have lots of guides there that help you figure out the best way to go for all the trophies in a game.