Hi, I am an experienced Android developer (new to Freelancer.com). I have worked with Adobe-AIR platform before and I have released a game using the platform. This means I have experience integrating Ads into Adobe-AIR apps. Normally, the Ad vendors themselves do not support the Adobe AIR platform, but certain people release ANE's (Android Native Extensions) to allow us to use their Ad Sdks for Adobe-AIR.
I haven't used Mopub before, but I have used many ad vendors and I believe it should be no problem. Mobup do not support AIR, but Stickman Sports released an ANE so that we can use it on AIR apps. I also already have a paid AdMob ANE that we can use if you wish.
Please consider using me for my services.