There are some great new features for images within Prezi, but could you introduce a simple cropping tool? I have to save images from the web (mainly google) then crop them in Powerpoint or Paint, then save the cropped image in a folder to then upload it into Prezi. It would be much easier to do it directly in Prezi to see it in context.
David, thanks for this image cropping idea. I have noted it along with your spell check suggestion.