I'm still working on an update for Air Traffic Controller, which brings it to Version 1.2.
It includes a better layout for smaller screens (in some cases admob was hovering over the controls so the game was unplayable). Or on bigger screens with a higher resolution the textsize will increase, so it should be easier to read the values of the planes.
Another bigger thing are the new random events. There will be some "emergency cases" you have to care about. While you have to guide the planes to the landing zone, it could happen that an emergency call arrives you, the pilot of a plane is sick and he can't fly the plane any more. So a civilian have to fly it. You will give the same commands to that plane than to the others, but because the civilian isn't a pilot and your tower has to explain every step, the action will take 2 ticks later than normal. So you have to plan wisely how you guide this plane, because a spontaneously change of the direction isn't possible. But that's only one of a few ideas I've got for the emergency cases. You'll find the rest out when the update is ready to download.
Stay tuned! :)