Sony announced a game called Dreams during its E3 press conference, which is a new title from Media Molecule. It's hard to know what exactly the game is, as the focus seems to be on creating your own characters and environments.
You move the controller to "paint" in the world, and you create the game's characters and world. You can grab objects and put together a new world in a few moments, and then you get to animate your characters using the motion controls on the DualShock 4.
There was a short demo video, but it also seems like a toolset that allows you to create your own scenes and maybe even games. Sony said you can create a game, a play, music or a performance ... but how those creation tools turn into a game is a bit hard to understand at the moment.