Something like this would be really welcome, never thought about this one myself.
I hope UI got all the loving it needs in final or gets in updates to come. GC2 UI sure had issues, but I could live with them. Now with all the added stuff coming with DA, those UI quirks are starting to catch my eye even more.
I love a game with alots of options but not too informative/illogical UI can do alot to hinder that enthusiasm. Like some said, diplomacy screen has been quite bad UI wise from the beginning. The way techs are presented in it and the inability to give fleets to AI players for one is blood boiling.
Bit more about the diplomacy screen, Iam sorry in advance. Perhaps somekinda points system could be added. Clearly AI somehow values what kinda deal its going to make. But its totally frustrating when you you have to quess what the AI wants. In example you want a Industrial Sector tech from the AI, you throw 20 techs at him and when you add one more tech, the deal comes acceptable!! Now how more confusing can it get?
Now if I only knew how much weight/points each of my techs would be. In alternative reality, I choose industrial sectors from AI. Ok thats 210 points. My Laser IV is 50 points and terraforming tech say 200 points. Now I give them and its a done deal, instead at the moment I have to guess how important my techs are

Sorry to went, but this has been building up since the GC2 was released