A mobile advertising company that tracked the locations of hundreds of millions of consumers without consent has agreed to pay $950,000 (£640,000) in civil penalties and implement a privacy program to settle charges that it violated federal law.

PhoneGap is a free and open source framework that allows you to create mobile apps using standardized web APIs for the platforms you care about.

The Guardian Project is about more than just apps. All of our code is open-source in order to move the collective ball forward in mobile security efforts. In addition we are building developer-focused libraries, tools and source code for you to add security-oriented features and capabilities to your own apps.

Rhodes is an open source Ruby-based framework to rapidly build native apps for all major smartphone operating systems (iPhone, Android, RIM, Windows Mobile and Windows Phone 7). These are true native device applications (NOT mobile web apps) which work with synchronized local data and take advantage of device capabilities such as GPS, PIM contacts and calendar, camera, native mapping, push, barcode, signature capture, Bluetooth and Near Field Communications (NFC).