Now available version 1.1 of the Defend London, with great improvements:

Radar in screen.
Nearby enemies indicator.
Hitting enemies easier.
Enhanced shots graphics.
Campaign must be passed mission by mission.
Movement sensibility configurable.
Training mission.
Automatic language selection.
Other minor changes.

[ame=]YouTube - DefendLondon - Iphone DogFight 3D Game[/ame]

See it in iTunes:

And a Lite Version:

Download lite for free in iTunes:
Defend London 3D Lite2 for iPhone, iPod touch, and iPad on the iTunes App Store