A while ago I wrote about a new iPhone game Airport Madness Mobile that was taken from the very popular Airport Madness game made for PC's. They just released the latest version of the game called Airport Madness 3.
You can get a free try of the game here.
The full version has great graphics and gives you the flexibility to decide on crossing or parallel runways. You can choose complexity levels and different scenarios. There are even emergencies and weather that come into play.
It will be interesting to see if the latest game, Airport Madness 3, is a huge success like the other versions, and if it ever comes out on the iPhone or iPad.