We know that not everyone uses Flex Builder, especially folks on a platform where Flex Builder doesn’t exist. The Flex SDK is designed to provide everything you need, even if you want to remain in the editor of your choice. What we don’t provide however is productivity tools like syntax definitions for other popular editors like Emacs, Vim, and TextPad.
So we’d like to encourage the community to build up libraries for supporting 3rd-party editors, and we’ll be happy to point folks to them via flex.org.
Here are some starting points. If you know of something we should be monitoring please let us know via the comments.