Valve talks Portal 2 on PlayStation 3, Steam on 360 | Ars Technica
Valve Reveals Portal 2 for PlayStation 3: Steam Details – PlayStation.Blog
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Portal 2 PS3 Features Revealed
Category:PlayStation 3 | Half-Life Wiki | Fandom
Valve: "Playstation 3 and PC cloud saves are separate and cannot be shared". I'm angered by how often cross platform save sharing in Portal 2 was reported (I'm looking at you, Game
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