The only problem with that is building placement. Unless you choose to just allow the game to pick a site for you if you pick a new building from the city manager screen.
That's only a problem if you insist on some form of build queue control directly within the city list. I use the GC2 list to change ship build orders, but I always go to a system and check the improvement queue even though there's no control over placement in GC2.
My favorite 'fix' for Bryan's request, though, would be changes to make a game with more than three cities under a player's direct control a wildly unusual thing. If the map must be tessellated with towns (which seems, vexingly, to be the case), most of them should be independents or governed by vassals (offspring) and only indirectly connected to player economies. I'm still sad that Scott's 'old' ideas on using champions as chancellors/governors never got traction.