New Lytro Camera lets you change the focus of your picture after it has been taken.
This is pretty cool, by recording the entire light field, (i.e.) each ray of lights color, luminosity, and vector direction it allows you to refocus your image after it has been taken and make a choice as to what depth of image to focus on after the picture has already been taken.
Lots of sample images to play with are here: lytro.com
(Double click on whatever part of the image you want to see in focus)