I'd love to see GD generated thumbnails of images, with the possibility of having them displayed as seen on wikipedia -
http://en.wikipedia.org/wiki/Carts
i.e. :
* Images auto thumbnailed (to a user chooseable size);
* A border being placed around the image (1px - CSS) (note: border as in a div border, not a GD added one :P);
* Comments being added inside the image border.
Thanks!,
Dave Hope.