http://news.cnet.com/8301-30685_3-20122734-264/lytro-unveils-radical-new-camera-design/
Click the link for the rest of the article and a video of the camera in action.
Heres the link the for the actual camera:
https://www.lytro.com/camera
Click that link and you'll see sample pictures where you can change the focus on the picture. Its pretty awesome.