Portal 2 for PS3: Steam features detailed - Gematsu
Portal 2 Cheats For PC Xbox 360 Macintosh PlayStation 3 Linux - GameSpot
Will Portal 2 New Testing Features Arrive on PS3? | Attack of the Fanboy
Valve explains why Portal 2 doesn't include Move support on PS3 | VG247
PS3 games with dead servers are getting a new lease of life via private servers! Already Motorstorm and Warhawk are playable with more games getting added!!! : r/PS3
PORTAL2 ON PS3 STEAM SIGN IN PROBLEMS!! - Page 2 - Portal 2 - PSNProfiles
Server Shutdowns and Unobtainable trophies - General Games Discussion - PlayStationTrophies.org