'Angry Bird' Spies

I have 'Angry Birds' on my i-Phone, but even though I rarely play it, I'm thinking of removing it:

Any time Angry Birds or Yelp is opened on a smartphone, information is being sent to marketers -- and app developers aren't required to reveal it. Apps running on the iPhone, Android and BlackBerry platforms often collect personal information to be resold to marketing companies and initiatives such as Google's AdMob. These apps and others work in conjunction with in-phone GPS chips to give marketers detailed information on smartphone users' locations, gender, ages and, in some cases, personal contacts and use of other apps.

...Data mining from smartphone apps is endemic: A recent investigative piece in the Wall Street Journal discovered sensitive personal information was being sent to marketers by popular applications such as Angry Birds, Pandora and Yelp. This information often includes users' contacts, geographical location and a mobile phone ID unique to each user.

In many cases, smartphone app developers send collected data to third parties for profit. Neither Apple, Google nor Research in Motion's policies require app developers to explicitly inform customers that personal information may be resold.