What I think would be a good gallery system would be to have one similar to facebook's. If you click on a photo, it is automatically assigned to a page with a comments section, then you can use your left or right arrows on your keyboard to switch photos. Each photo still has it's own comment section. The only downfall I see to this process, is that the comments load separately from the photos. So maybe there is a database involved. Each photos has a tag or marker assigned to it. Then as you call up the photo, the tag or marker is pulled in the database that is used to pull the associated comments. Sure the idea sounds simple, but I am no programmer/software writer, so if someone can create this, that would be great.
again, the only downfall I could see is overhead. What if a photo has like 300+ comments, the comments section could take well over a few minutes to load. (funny how minutes have become an issue for us in this day and age, we're always in a rush!)
Anyhow, if someone creates this, please, PLEASE let me know. I would like to have the same type of setup.