Jack Tretton (CE...I don't know) told someone that PS4 games range from $.99 to $60, which means fuck all at this point, but hopefully it won't see another price hike. And true variable pricing would be nice, more games between the <$15 or $60 tiers.
and Shuhei Yoshida (his name is in the credits for Jak and Daxter and Sly Cooper) said that the remote play feature will be available for all games. He also brings up the lag. The quote:
Q: You showed us how you could use the Vita as a second screen in your living room. Is that local only, or is there any ambition with Gaikai to use that as a server and get further away in the living room?
A: Technically speaking, it works from anywhere, as far as you have a wi-fi connection from your Vita to the PlayStation 4. It needs to be wi-fi. However, for some games, when you play or connect from far away, it accumulates latency. Some games may not be playable, like fighting games or shooting games. But some other slower paced games will be playable. As long as you have home routers anywhere in your home, you can play every PlayStation 4 game. We ask developers when they finish the PlayStation 4 product and submit a master to make sure that they have the appropriate controller mapping to work on PS Vita. All games will work – unless it is a dance game [laughs]
In a way it's better than Wii U in terms of game support and range. The lag is supposed to be reduced from where it is now, and when I tried it with Tokyo Jungle, it was pretty decent. Wii U doesn't have noticeable input lag; only bad image quality due to the compression. I could see playing Secret Final Fantasy Game on it.