The relationship between privacy and mobile applications is coming into focus. On February 27, 2012, the California Attorney General entered into a Joint Statement of Principles with the six largest mobile application companies – Apple, Google, H-P, Microsoft, Amazon and RIM – regarding consumer privacy and transparency issues when data is collected through an app. http://ag.ca.gov/cms_attachments/press/pdfs/n2647_agreement.pdf. The Five Principles set parameters for good practice. Although not legally binding, the AG promises to review compliance in the fall, and may use California laws on privacy, false advertising, unfair business practices and others as enforcement tools. Since California often leads the way in privacy enforcement it is likely that other states will follow suit.