What I think would be useful to have is the ability to add visual annotations to the images and the ability to label the spot adjustments (sky adjustment, face dodge, tree sharpness, etc). When something has a lot of dodging and burning or simply brushes that control spot saturation, moire, sharpness, etc it's difficult to know which little circle to click on when there are more than 3 or 4. This is especially useful when image has been worked on a few weeks prior. Being able to make visual notes to self on top of the image is useful if something comes to mind for the next next time I have time to work on the image.
