I really wish there was a good one like zoo tycoon or rollercoaster tycoon, but not gonna happen...(microsoft)
Microsoft has rights to Roller Coaster Tycoon?! That is awful... I was hoping one would come out on the App Store.
I enjoy Air Tycoon, you manage an airline in it. Its really good if you like to the management side of things, however you don't actually get to see things happening, like passengers and what not flying.