Adobe released Air 3 this month. The new Flash Builder is coming with Adobe Air 3. Those who already installed Flash Builder can upgrade the Air SDK to 3. This video will help you in this case.
Thanks CrosByMichaela for sharing this.
Air 3 has many support for mobile development. For example, it has now support of iPhone application background running features such as play audio, access internet, use voice service, and location based services.
Flash build iPhone profile xml file now supports properties like: