Wow, very nice work! I agree with everything and hope the UI programmers will be kind enough to print this out and put in some overtime....
Major Issue/Serious Annoyance: Selecting a building REMOVES the Resource display and shows the building Queue. I absolutely hate this behavior. PLEASE leave the Resources on display. that is FAR more useful for me to quickly see what type of building I need to place next. I don't care what's in the queue, I care what building I'm going to ADD to the queue, and to know that, I need to know what resources the city is producing.
This is by far my biggest gripe with the UI.
The one thing I didn't see listed here is when you are in the building improvement screen of one city and you click on a different city it should take you to that city and it's build panel. As it is now nothing happens, you have to click "done" on the first city, select the second city, then open the building panel again.