I have posted about this in the general discussion. I have decided to pay Vincent to code this for my purposes but I think it would be something really beneficial to professional photographs.
Please think of this scenario which would be quite common for a professional photographer.
A photographer shoots many "Beauty" shots of various models or an auto shooter shoots many different car models.
If the client searches for the tags "Beauty" or in the case of cars "BMW". The search would return all Beauty shots of models in a random order & random date. Where a common sense view would display all shots of the model "Sara" shot on a certain shooting day, next to each other. As search works now the images returned are in no coherent order for a client. So shots of models Sara, Mary, Louise are not ordered coherently.
I am presuming that a photographer would have a decent file naming convention, or Title naming convention.
This would be very similar to the way Gallery Sort Order allows using 2 or more fields to sort images.