snydeq writes: "U.S. regulators are planning to investigate whether Apple is shutting out third parties such as Google and Microsoft in advertising on the iPhone and iPad under revised terms to its iAd mobile ad platform. Apple's revised developer terms prohibit ad analytics collection unless it is provided to an independent ad service provider whose primary business is serving mobile ads. If enforced, the proposed terms would prohibit developers from using Google's AdMob service on the iPhone, according to AdMob founder Omar Hamoui. Developers using AdMob to deliver ads on cross-platform mobile apps would have to go through an alternative service for the version of the app running on an Apple platform, according to the terms. An impractical solution that some are calling restrictive."