The terms of Apple’s iOS 4 developer license prohibit data collection from competitors.

At the MobileBeat 2010 conference today, Google’s Admob division head Omar Hamoui told reporters that Apple hadn’t yet started blocking Admob on its iOS devices.
Apple (AAPL), last month changed the terms of its iOS developer license to prohibit mobile advertising networks owned by competitors (and who rhyme with Noogle) to collect analytics data on their users for the purposes of advertising.
This is an obvious blow to Admob/Google (GOOG), who depends on analytics data to measure and optimize advertising for its customers and developers.
Omar Hamoui said, “They haven’t been enforcing (the new regulations) yet. We’re very appreciative of that.”
Apple might be considering the legal implications as the DoJ has been investigating Apple’s competitive practices.
That likely won’t last. Apple didn’t invent that clause in its developer agreement for giggles. It plans to block out Google at some point. The question is: When?