The way I see it, there still is a City Screen, which looks like this:
http://e3.gamespot.com/image_viewer...e3-details/2/?full_size=1&rgroup=e32010_story
It just has way less panels than the old City Screen we're used to and shows a much larger faction of the map around the city. If you watch the BBC video this is the exact Screen that is up at 00:45. You can see the presenter clicking on Rome and then there is a very smooth transition to the City Screen.
Then at 1:11 after anothe switch from the City Screen to the Stragey Map and back again to the City Screen Dennis Shirk starts allocating workers. You can see that he can position the Citizens in a ring of 3 around the city of Rome. All of this happens in the City Screen.
So honestly I have no idea what you and Krikkitone are referring to? I'm really curious whether I missed something? To me it sounds exactly the way it worked in Civ IV, where you could access the build queue without going into the City Screen, but still had to go there to micromanage which tiles are being worked.
At 1:24 Dennis Shirk mentions that a player doesn't have to enter the City Screen and that Governors would take care of the tile allocation. This was also possible in Civ IV.
So while I like the look and feel of the new City Screen not much has changed about the general mechanics behind it.