I woudn't be surprised if that's the case but I am afraid very few of those games will award trophies retroactively as Sony seems to have designed a system that fight game saves trading ( which is imo a good thing, that is the plague of the 360 system).
So most of the games that had internal accomplishments that will be converted to trophies and were tradeable through saves trade won't probably be retroactively awarding them...
The exceptions I can think to that are :
- Burnout paradise ( see other post quoting their developer)
- DMC4..
Due to the way the medals/emblems are designed in Uncharted/MGS4 I do foresee people being able to trade saves and get trophies easily on those though :( ( you can easilly make a save before getting a hard emblem and trade that one and the receiver could easilly get the emblem in 5 minutes of work as the saves are indeed tradeable in those games). Mainly because the saves don't seem to be tied to the PSN Id at all....
PS3-Xbox360 gap : 1.5 millions and going up in PS3 favor !
PS3-Wii gap : 20 millions and going down !
