Something similar to that used on dpreview.com. Basically we can select which settings, if they’re available in a photo’s EXIF, to display when someone ‘hovers’ their mouse over the photo – i.e. Camera type, shutter speed, ISO, EV, aperture and shot date & time. I imagine this would be VERY useful for a large number of wordpress users.
Under wordpress settings just a checkbox to enable/disable the feature and then a checkbox next to each of the available EXIF options.
This keeps photo blogs clean instead of having to try to manually add shot information as either a caption or separate paragraph.