Utilizing Gaikai’s streaming software, the PS4 will act as a server, and the Vita as a client.
The ultimate goal, according to Gaikai Chief Executive David Perry, is to make “every PS4 game playable on the Play Station Vita.” How PS4 games, which use a controller with more buttons than the Vita has, will work with such a transition remains unknown.
No backward capability…yet: The PS4 won’t be able to play PS2 or PS3 games, it’s true.
But Sony’s stated hope is that eventually, by utilizing the cloud and the PS4’s existing streaming abilities, that emulation of the entire Play Station line’s library of games will be possible at some point.
What that means in layman’s terms is that the PS4 will be significantly more powerful than the PS3, but don’t expect the same graphical leap as was experienced between the PS2 and PS3.