At E3, Sony confirmed that the PlayStation 4 will be getting PS3 backwards compatibility using Gaikai’s streaming technology in 2014. Initially available in the US, Gaikai will provide PS3 and PS4 owners access to critically acclaimed PS3 games, streamed through cloud.
Eventually, Gaikai will also be extended to the PS Vita and other territories. However, Sony didn’t reveal how the streaming service will tie in with existing game purchases – disc based or digitally downloaded. Hopefully, games purchased via the PlayStation Store will be playable via Gaikai at no extra charge.