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When Sony announced the PS4 in Febuary, people thought they were very reluctant to give any details about the product. Many thought Sony were going to be changing a lot, but they are not. They have changed a bit, but in a good way for the community. Andrew House stated that if you bought the game, you should have the freedom to do what you want with it.
They have basically stated that there are not going to be any restrictions what so ever when it comes to your games, and what you do with them.
-Source