Disney has an app for Disney World and Disneyland that shows wait times, directions to attractions, etc.: "Mobile Magic". And you won't find it. Why? Because you are almost certainly looking in the iOS app store. This app is for certain Verizon phones only.
To see the app, you can look here. I wonder what Steve Jobs has to say about this (or, perhaps, this was done to show that Disney does not overly favor Apple). Not having it on the (true) app store more than a year after its Verizon release is startling.