A new type of photography was announced with the introduction of the Light Field Camera. I'm not sure what it looks like details are sketchy but its selling point is "shoot now focus later".
With this camera you can change the point of focus and or depth of field at will whenever you like on a computer. Sounds too freaky. I messed around with the examples on their website and I am intrigued. it sounds like it would virtually make an out of focus image a thing of the past. Stay tuned when I get more details I will post them here.