The Curator sounds like an excellent idea, the name is the product. I've proposed it without the name as a general idea to a couple of big museums, but the best I got is a polite personally-written no from MoMa. Without a customer, at this point it would need to be a paying one, I don't have a starting use case. But thanks to the suggestion I'll wander by some commercial art galleries and see what the smaller-scale market is like.I would just call it The Curator. Nothing worse than trying to pick out fifteen images to put up at a show. A program that could do that, and show the placement location would be worthwhile.
In my original idea, you'd get a virtual reality walkthrough of the gallery and coordinate choice and location with hand waves. One simple interface that I've thought of for myself, without inputting the floorplan of a gallery, would be to have the screen like a card table where you'd place blank cards in your chosen pattern, then have them populated by pics, then change each one by clicking on it or some tiny options next to it. That would be a fun app to write, and may happen someday.