Excellent job on this plugin!
I would love a comments and contact field also. I have two use cases to consider.
1) A church website where people could upload their own pictures of events. A comment field where they could give the site admin a description and their contact info would be helpful.
2) Similar: A local news site relies heavily on community reporting. This is currently done via email. A way to give a caption, a brief description, and contact details would be awesome.
