During the interview Nomura was asked what he thought of the PS4, and his answer was quite funny.
"I thought “That’s too much” (laughs)He also mentioned that the PS4′s sizable RAM “helps a lot” because thanks to it the world can be made as seamless as possible and more data can be permanently resident in the memory. The number of actions, animations and effects can be increased.
The use of the features of the DualShock 4 hasn’t been decided yet, but Nomura would like to use the touchpad in some way. He’s also considering the use of external devices as companions, like the PS Vita and tablets.
Source: Dualshockers