Seems you can target iTunes App Store in Google, and I cannot see any reason to have a minimum buy and no out clause to go through iAd.
Anyone have any experience here?
Sorry JC, none at all. Ran a small campaign on Admob a few years ago and was surprised about the volume.
So I've found some properties (apps) that I know I want to target. They run a mix of iAd and Google, probably through a rotator like adwhirl. Because iAd commands a higher CPC, they get more of the inventory so if I want it I have to pony up.
Other than that... no tracking. more expensive. just a shiny Apple exterior.