Air 2.6 iOS – cannot install on Device-Collection of common programming errors

I am struggling to get an Air app installed on my iPod. If I follow this tutorial: http://help.adobe.com/en_US/air/build/WSfffb011ac560372f3cb56e2a12cc36970aa-8000.html

I get the error

The app “Hello World iOS” was not installed on the iPod “Davids iPod” because it is not compatible with this iPod”

I have no problem if I use packager for iPhone, with the same certificates etc.

Does anybody know what might be the problem?

It turned out my device is not supported – see my answer below