Flightradar24 now on iPhone and Android
The popular flight tracker flightradar24.com has been released for iPhone/iPad and for Android.
There are 2 versions for iPhone/iPad: Flightradar24 Free and Flightaradar Pro.
And one version for Android: Flightradar24 Free. A pro version for Android will be released soon.
Search for "Flightradar24" in app store or android market to download the app.