How else are iAds supposed to take off?
Depending on how strictly Apple interprets 'affiliated with' and 'primary business', which aren't strictly defined in the license agreement, that's pretty much everyone in the space - even the 'independent' mobile ad networks have relationships with carriers, and carriers certainly distribute mobile devices.
It's a pretty typical Apple license agreement, really - it's extremely wide-reaching, open to interpretation, and the real question is how Apple will enforce it at any given point in time.
Edit: Really? I'm getting downvoted for this? Gruber's point that Apple's critics won't let facts get in their way gets proven once again.