Previously we've seen Adobe show off how Photoshop CS6 will be able to recover your badly blurred images.
Now Adobe wants to add blur to your images to emulate a shallow depth of field that can only be produced otherwise by a wide-aperture lens. See the video below for more on this
If you wanted to create a fake shallow depth of field in image-editing software today, you would need to employ a number of layers and masks--all with varying amounts of blur.
In CS6, however, you only need to use the blurring iris tool to point out what you want to keep in focus. The new tool in the blurring gallery also lets you adjust the shape, size, as well as the intensity of the blur.
Potentially, this would allow you to make all those shots you took with your smartphone camera or point-and-shoot camera look like they were taken with a digital SLR.
Another great use for this feature could be to change the focus-point of your images in post-processing, like what the Lytro Camera can do with its Light-Field Sensor.