FlxCameraDemo:
Demonstration of the HaxeFlixel camera (FlxCamera) features, avalible here:
http://www.haxeflixel.com/demos/flxcamera
Note: I also made a test while writting this demo, if application.nmmml : is uncommented, the zoom out will not decrease the view size, that is done by increasing the rendering area of the camera, (which decreases performance), this feature was left out of the demo because of issues related to the camera styles.