Sony: PS3 and PS4 cross-play is 'technically possible' (update

Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon

Sony Starts PS4 Fortnite Cross-Play Beta - Game Informer

Sony might allow PS4 cross-network play with PC, Xbox One

The official release date for the PlayStation 4 is November 15, 2013. Confirmed orders will arrive at your shipping address based on the shipping

PlayStation 4 DualShock 4 Bundle [Discontinued]

PS4 System Update 11.00 Brings Small Improvements : r/PS4

You can change your PSN ID starting today, but PS3 and PS Vita games are not supported. Has anyone made the change yet? : r/vita

PS4 Releases Firmware Update 10.70 To Improve Performance

Sony continues to lock PS4 players out of cross-console play

Epic boss says Sony charges publishers a cross-play fee in certain circumstances