When uploading photos the conventional way, through the web interface, there's no information on the progress of how the photos are being uploaded -- how far done you are, if you timed out, etc... I think this would be a beneficial feature because a lot of the time people have no idea its doing anything, especially computer "newbies."
I've had plenty of friends get discouraged when uploading to my website (and then just going and putting them on facebook, webshots, etc) because they have no idea what's going on. Again, I think this would be beneficial, helpful, and welcomed.