Kojima said video games can't be art? And he's always the one making games that play like movies...
I think he's right, though. It will be a console if you want it, but you'll be able to take it with you and use it for various things as well. Think of an iPhone type deal(music player, phone, etc.) with the capability of being hooked up to a TV to play if you want, or standalone on the device itself. It's not that far-fetched, and I believe that's what he means. I don't LIKE the idea, but it's probably what will happen at some point. Whether it'll be a fad or not is another thing.
Man, I'm really getting behind. I haven't looked into anything about Metal Gear Solid: Peace Walker. I hope it doesn't mean Snake is so old he's using a walker to get around.