I was a long time ago a Coppermine user, and from time to time I check out the progress of the work. I think Coppermine has the best back-end interface and functionalities for photo-uploads and management out there, but unfortunately the front-end looks real out-of-date. I have spent hours looking for a theme that makes Coppermine look fresh and modern but there doesnt seem to be one. All themes are more or less based on the same layout with just colors, backgrounds and such replaced. Since I dont (since I havent the skills) make themes for Coppermine I can only guess, and that guess is that this is because Coppermine itself doesnt allow to much freedom when themeing, correct?
I therefore suggest, wish, hope and pray that the awsome boys and girls who stands behind the development of Coppermine will take a whole new fresh grip on the design/layout parts of Coppermine. I would die for being able to use Coppermine as my choice when making a nice looking photo-portfolio/site.
I hope no one takes this the wrong way now. Its a fact that Coppermine works awsome for showing photos on the internet, but it has no eye-candy, it just look so...90-ish

A great example of similar project that has the opposite problem (great front-end but not so flexible back-end) is PixelPost (
http://www.pixelpost.org/). Unfortunately this project has died since the people behind it couldnt get time for it in the end. They are looking for someone to take over it acctually. Coppermines back-end + PixelPosts front-end would rock the world and be an answer to my prayers.