Adobe is collaborating with the University of Michigan on a new photo editing app that responds to voice commands. But it's more than that - it can take vague commands such as "make lighter at the top" or even "make heavenly". Naturally the results are not the precision work you'd see from a professional but it does open up possibilities for the curious amateur.
The video below demonstrates some of these features. Unfortunately the quality of the edit in the video is a bit suspect but you'll get the picture.