We have our arrows at the top of the screen (which we now know are sacred
) to switch between individual cities in alphabetical order. It would be really great if we could
do the exact same thing simply by swiping our finger right or left on the city screen. On the iPad I find I'm constantly having to move from the bottom of the screen to manage thinks like my market/academy/guild forums etc. all the way back to the top to change cities. I'm sure on a smart phone this isn't much of an issue as you're just moving your thumb up a bit, but it can get a little tedious on a larger screen. An easier idea may be to simply add city arrows to the bottom button row as well.
I could be way off and this idea is flat-out impossible, or I'm the only person in the world who thinks this; thought I'd throw in my two cents anyway.