Love this game. <3
To clarify a little bit Limbo's eboot is signed with 3.50 keys.
If a game is signed with 3.60+ keys no matter if you edit the param to 3.55-3.50-3.41 the game will not work.
Progress may be slow... But this is progress and all progress is good. I like the look of this. Sony will be suing someone before you know it