One surprising figure to step on stage this evening was Braid creator Jonathan Blow, who announced that his next title, The Witness, would be made available on the PlayStation 4,and showed off a short trailer depicting what looks like a really unique experience. It's nice to see that Sony will continue to focus on indie driven, which they've certainly seen some success with on the current version of PSN.
The trailer, embedded below from PlayStation's official Youtube page, shows off bits of the game without really revealing anything specific, but it does give you an idea of the look and different worlds/areas that the game will contain. I'm definitely intrigued, and want to learn more.
The Witness trailer:
The Witness screens: