When you view a panorama for example on Facebook, you see a selection of the image, and you can "look around". Would be nice to edit 360 panorama photo's this way. Change fov and move around. Would be super for adding logo's on the bottom and fix the sky.
There's countless options to do this. I am using this panorama stitching software (sometimes, but always for 360) and it also has a viewer app. While exporting you can preview the fov in real time. You can add a logo (when purchasing the viewer) and you can also make entire tours. Support is superb!
Edit: By which I didn't want to say that his would not be useful in Photoshop! But right now PS is not even making matching adjustments to 360 panoramas where they wrap around. And there's no way to make any adjustments to overlapping, points matching etc. Plus there's no mechanism at all to save panoramas as html/java. At least as far as I'm aware.