I have a new app in the iTunes app store: http://www.getjustlanded.com
that uses the FlightAware API. We're #8 in travel right now.
From my testing it seemed that FlightAware mostly has US flight data, which is why the app is limited to the US-only app store right now. My users are clamoring for other countries! Which countries do you guys have good coverage in? The most asked-for countries are UK, Australia, France, Spain and Germany. I couldn't find this information in your FAQ.
Just to clarify, these countries also have to support flight alerts for me to be able to open the app up to users in those countries.