Gamers have been disappointed by the lack of backward compatibility in the recently-released PlayStation 4 and Xbox One consoles, but Sony has been working on a way to bring games not just to its newest console.
Sony announced Playstation Now, a new game streaming service that will be available officially in the US this summer. The service will deliver PS3 games to the PlayStation 4 and PlayStation 3 first, and later to the PlayStation Vita. The goal of PS Now is to let people play games in multiple devices, including tablets, smartphones, and most models of Sony’s Bravia TVs. Eventually, PS Now will arrive to non-PlayStation devices.
Basically, PS Now will offer two plans for the service: by renting titles, and by subscription. Many features offered in the PlayStation Network will also be supported, such as online multiplayer, messages and trophies. Starting at the end of January, Sony will start offering a closed beta access of PS Now in certain regions of the US.
Sony also mentioned 4.2 million PS4 consoles have been sold as of December 28, 2013.
[Source]: Sony Computer Entertainment America PR; PlayStation.Blog: Watch Live: Kaz Hirai’s CES 2014 Keynote [http://blog.us.playstation.com/2014/01/07/playstation-now-streaming-game-service-coming-this-summer/].