I took my code I previously used to control the Parrot AR.Drone and turned it into a reusable component. I added some more functionality to it as well, although there is a lot more to cover. The component is available on GitHub.
It should work with Delphi, C++Builder, Appmethod and RAD Studio on iOS, Android, Windows and OS X. I’d love to hear how it works for you and what you use it for!