http://www.ign.com/articles/2013/09/23/playstation-games-could-stream-to-pcs-tvs-and-phones
"Speaking of the ultimate goal, we would like to deliver PlayStation games to all devices," he said. "So we’re considering various things like PC, TVs, Blu-ray players, smartphones and tablets. We hope to continue to expand not only to Sony devices, but even to devices other than Sony’s. This is still being studied
so no need to buy a ps4 when you can just stream them on the pc