Can I use the Flex Framework to create content for the iPhone?
While it is possible to create iPhone content using the desktop Flex Framework, we do not recommend it. The Flex framework is currently optimized for execution in a desktop environment. The performance, UI, and interaction models have not been optimized for mobile devices. Adobe is working on a mobile Flex Framework, which should be better suited for iPhone development. You can find the latest information on the mobile Flex Framework at: http://labs.adobe.