I am an experienced Flex and Air Developer and love Android having owned a G1, a milestone (Droid), a Nexus One, a Galaxy S and now a Nexus S. Understandably I am interested in developing Flex applications for Android.

I have just started working through the flex for android in 90 mins tutorial here:

http://coenraets.org/flexandroid90/FlexAndroid90Minutes.pdf

The very first step says that I have to create a Flex Mobile Project.

I was under the impression that the whole point of Air is that the same application could run on many different platforms. I was intending on creating an air app with different skins that could be swapped in and out depending on the platform it was running on. This seems to imply that I will have to compile my Air app once for desktop and once for mobile.

This isn't the end of the world but it's not quite how I expected it to work. I suppose that if I am creating mobile specific skins then I may as well create a mobile specific app.

Is it possible to create one Air app that will run on both mobile and desktop? Is this a good idea?