This news comes just two weeks since the Sony PS3 Full 3.60 SDK was leaked by JoHNAaRoN.
To quote: Limbo is a black and white puzzle-platforming adventure that puts players in the role of a young boy traveling through a hostile world in an attempt to discover the fate of his sister.
1) Install limbo_demo.pkg
2) Copy folder LIMBO to your GAMES folder
3) Run Multiman and select Limbo game
4) Start Limbo from */app_home/PS3_GAME/ option. Do not start limbo from XMB Link created when you installed demo.pkg, because this is the demo, of course. (Go to XMB / Game */app_home/PS3_GAME/ and press X above *Install Package Files)
5) Enjoy Full Game
Note: Do not start limbo from the XMB Link created when you installed demo.pkg, because this starts only the demo.
It works on 3.55 and it's tested with Kmeaw and multiMAN1.15, to the end of game. Its just easy. When you have Limbo mounted with multiMAN, just start it with XMB option */app_home/PS3_GAME/
I'm not posting any links due to the legality of this news. Just thought it was interesting to hear about.
Source: Limbo 3.6+ game working on CFW 3.55 - PS3Hax Network - Playstation 3 Hacks and Mods
Thanks to Tranced for the news submission!!