iAd is useless for international developers and/or users.

Please add Mobclix integration to Corona, so we can make free games with ADs but not only with iAd (which is a crap anyways, imho).

Mobclix can show iAd and if it is not available due to fillrate or geo location, it will show ADs from other networks (inclusive AdMob).

It also looks for the best paying advertisement to show. At least, this is what they say...