Sony    

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    ,      :       PlayStation 3,              ,       PlayStation Network   .      ,      , Sony      :    Microsoft        ,       .  ,   ,   /   ,        -          PSN  SEN,          .  
     PlayStation 3      ,       Sony.  ,   ,       PlayStation Network  Sony Entertainment Network    PS3.    ,               .  
 Sony ,            ,         .  
   Sony,   ,          Microsoft     ?     .