For those photojournalists that use cameras other than the 1D line, Canon has unfortunately ignored the ability to add voice annotation, unlike Nikon who adds it to that other than their flagship camera.
So, I've seen several people doing this, but it would be difficult to work with in the field I believe. Shoot your frame, then immediately record a short video with the information. PM could then pull the audio from the video and mark the previous images as annotated.
Granted this would have to be something in preferences to make it do that, but I'd be more than willing to pay for something like this added to PM especially since I use a 1D and my next body is something to compliment it, a 7DII without voice annotation.
