I have to admit that between GAF going down and the stuttering nature of the GT streaming I couldn't see much of the graphic fidelity of the trailers.
But seeing it in GIF like that does look really good, especially the Killzone one. It doesn't mean that I'll buy Killzone (can't stand FPS of any kind) but I'm imagining how next-gen Mass Effect will look like on PS4.
It's an engine demo not gameplay. So as far as that's concerned, yes it's real. Ono said it was a realtime demo of the new engine. MT Framework looked way better than pretty much everything when we first saw that too.
Watch Dogs was played on a "PS4 spec'd PC" for stability issues. It's no big deal, the game is still early in development.
I take the killzone and watchdogs, but the latter was running on PC.
I thought the DriveClub was cool. Upon second look at the video, the cars are insanely modeled, the environment and gameplay somewhat lacking but I will give them it is a WIP.
The rest where nice tech demos that should be taken as that. Although I must admit that the possibilities look promising.
Will the casuals care?