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The lawsuit, filed December 23, seeks to establish a class action status covering all iPhone users who have downloaded apps since December 2008, according to a report by Bloomberg.
The complaint appears to be patterned directly upon a Wall Street Journal report from the previous week, which highlighted mobile apps as using the same kind of anonymous user tracking that conventional web ad networks use to improve the relevance of display ads.
The report specifically cited Pandora as sending "age, gender, location and phone identifiers to various ad networks," while noting that the game Paper Toss "sent the phone's ID number to at least five ad companies." Both apps are named in the complaint, and their developers are listed as defendants along with Apple.
The complaint, prepared by attorneys Scott A. Kamber and Avi Kreitenberg of KamberLaw LLC in New York for Jonathan Lalo of Los Angeles, says Apple assigns iOS devices unique device identifiers that "can't be blocked by users," but says that "Apple claims it reviews all applications on its App Store and doesnât allow them to transmit user data without customer permission."
The lawsuit reportedly alleges that "the transmission of personal information is a violation of federal computer fraud and privacy laws," and suggests that "some apps are also selling additional information to ad networks, including usersâ location, age, gender, income, ethnicity, sexual orientation and political views."
A similarly sensationalized report published by the LA Times in July resulted in a Congressional inquiry into Apple's policies regarding mobile ads after it suggested Apple was spying on users to track their "precise locations."
Privacy vs advertisers
Outside of malware, apps typically only send general demographic information to help advertisers target their messages to specific audiences, but the implications of tying any data, even anonymously, to a user's hardware in a way that can't be blocked or removed by the user is an emerging controversial issue among privacy advocates.
Blocking all user data or making any such information illegal to send to ad networks would result in making mobile ads much less valuable to advertisers, erasing the ad-supported business model that props up some types of apps in the iOS App Store and the majority of apps in Google's Android Market.