Aptana. Looks nice. I'll check it out. I tend to be very reluctant to upgrade anything I use on a daily basis.

So you're an FDT fan? I've never tried it. Looks nice, but what would it do for me that Flex Builder 3 doesn't? I still do all my AS3 in FB3. I tried Flash Builder 4 and chucked it out; it just made me uneasy. I don't want or need their data bindings or suggested workflow, or any of that catalyst crap. And I don't use flex components or mxml layouts...I just want a project/text editor that links me to the script where I called a variable when I need it, and FB3 is fine for that...