Spokesman from either Apple or the FTC declined to speak to Bloomberg, however, the central issues appears to be whether recent actions taken by Apple will result in less competition in the burgeoning mobile ad market.

This week, Apple banned mobile ad networks, such as Google’s AdMob, from collecting information like a person’s location to provide more relevant advertising. The move prompted AdMob’s CEO Omar Hamoui to write a blog post, saying that Apple is being anti-competitive: “The terms hurt both large and small developers by severely limiting their choice of how best to make money. And because advertising funds a huge number of free and low cost apps, these terms are bad for consumers as well,” he wrote.

The way Apple wrote the terms doesn’t seem to preclude most ad networks from collecting data, just mostly companies that also have a mobile handset business, like Google, or potentially Microsoft (NSDQ: MSFT) or Nokia (NYSE: NOK).