The manipulation of digital photo data, considered science fiction in 1972, is something every teenager can do on their smartphone today.
How about photos with an infinitely variable focus that can manipulated after you take them? Lytro, a spin out from Stanford University, enables you to readjust the focus to any point in the picture after the fact. I recommend you test drive the technology on their website
Lytro has built a new kind of camera sensor which captures every ray of light hitting it. Lytro also has software to turn that data into the shifting-focus images.
With this new camera, you can take photos of major life events, hard to capture objects in motion, or even the Loch Ness monster and not worry about focusing - just do it later.