Adobe is offering a public beta of Flex Builder 2 for Macintosh. Flex Builder 2 is a tool that helps you create Flash-based multimedia Web-based applications. The beta version of Flex Builder 2 for the Mac includes everything necessary to build and test Flex applications, matches the features found in the Windows version, and is compatible with PowerPC and Intel-based Macs.
The beta of Flex Builder 2 for Macintosh is free, and can be downloaded from the Adobe Labs Web site.