I had hoped that transferring PS3 trophies would be as easy as transferring 360 achievements, but I ran into issues of not being able to do this. My gf and I both have PS3s at our houses, and both of our accounts are on one another's systems. When I was playing Arkham Asylum, I would play mainly on my system at home, but also sometimes at her house since we both had the game. I earned some trophies on her system and wasn't able to sync them onto my system. So I have the trophies for like 25% and 50% riddles and also all riddles found, but the 75% is on her system and I have other missing trophy gaps.

Also I work at Best Buy and a customer brought in his PS3 that would not eject discs. Long story short, I helped him with his new system he received through our protection plan by transferring all of his saved data with a USB drive, and also logged onto the PSN and recovered his account. When doing a trophy sync he only received the trophies from 2 out his 20+ saved games.

So yeah, I know it should work, but I've only seen partial success with this process. Has anyone actually done it successfully, as I would love to be able to play PS3 at my gf's house without bringing my whole system over. :?