It would be awesome if after a long dungeon, there was some sort of interface we could scroll through instead of the chat to see the rewards we got and the pictures of them or something like that.
This is a good idea, especially since some people might wonder what other people got from the dungeon. The simple way to achieve this could be that the green text which indicates what you got as a drop would be displayed for everyone in the dungeon with their names next to the drop (either in chat or in a specific "loot" chat window).
In addition to this, it could be nice to have some sort of way for people to track how many attempts they've made towards a certain drop (like the Divine Amulet or mounts). It would be nice to "mark" a certain drop through a separate interface that lists all possible drops from a boss (even though this may be hard to implement). I know that everyone uses the wiki and other websites to track drops, but it can be convenient to have a "loot table" in-game... maybe in the future the items can be "linkable" in chat so someone can reference the stats of an item without having to leave the game to look it up.
CH