It's kinda hard to believe that I've been doing Flex development on Linux for over six years now. In that time I've tried a few different tools. Vim will always be my favorite but debugging is painful. [Flex Builder for Linux][1] worked but lacked major features and commitment from Adobe for continual improvement. Most recently I've been using [IntelliJ IDEA][2] for Flex development on Linux. It's been working great! There are a few things I've had to get used to but they are doing a great job of providing superb tooling support for Flex. I've also been very impressed with the responsiveness from the IntelliJ team in their [forums][3] and [bug system][4].

Here is a quick video I recorded to show the basics of using IntelliJ IDEA for Flex development on Linux:
  


To get started download either the [latest prerelease of IntelliJ IDEA][5] or their [current production version][6]. Flex development is only available in their Ultimate Edition but they do provide a free 30 day trial. Let me know what you think.

 [1]: http://labs.adobe.com/technologies/flex/flexbuilder_linux/
 [2]: http://www.jetbrains.com/idea/
 [3]: http://devnet.jetbrains.net/community/idea/ideacommunity?view=discussions
 [4]: http://youtrack.jetbrains.net/dashboard/IDEA#tab=0
 [5]: http://confluence.jetbrains.net/display/IDEADEV/IDEA+X+EAP
 [6]: http://www.jetbrains.com/idea/download/index.html