AirServer, AppleTV support only certain iPhones models and iPads. However, iPod touch 4th generation is supported but only for certain applications (e.g. YouTube).
I had asked a very similar question which has been closed, and has been voted for re-open. With this question I would like to focus on the programming side of the question.
Is it possible to add some code to my iPod touch 4 Cocos2D app to enable the App mirrowing?
I found some reference and UIScreen has the mirrored property but I am a bit confused because the Apple store assitant said that iPod 4 generation has a different chip that doesn't allow the mirrowing. I thought that this was not true because is actually possible to mirrow Youtube, as well as by jailbraking the iPod 4 it should be possible too.
I am in the hunt of a tutorial-guide to enable this for my Cocos2D iPod 4 app. With iPhone 4S onwards this should be possible without adding any code but the issue that I want to solve is for iPod 4.