SourceMate is the new must-have companion tool for serious Flash and Flex developers.
Features include code generation, refactoring, code templates (i.e. snippets), metadata tag support, and more.
What they’re saying…
“is installing the new beta release of #SourceMate… this is truly a great piece of software, get it or fall behind – thats all I can say…” [source]
“I can’t imagine working without #SourceMate.” [source]
“loving #SourceMate, some great time saving shortcuts. Interested to see what use we can make of the code review feature too” [source]
“I’ve been incredibly impressed with SourceMate so far. Definitely buying it to go with Flash Builder.” [source]
“I just now discovered the Templates/Snippets feature of SourceMate and holy crap, it’s amazing!” [source]
“#sourcemate for Flash Builder keeps getting better! The extract method feature manages any references to objects and passes them though 
” [source]
“#SourceMate Woaw, this is really cool indeed. I think I’ve found my new best friend. Excellent.” [source]
“My initial testing with SourceMate and FlashBuilder4 makes me already want this in my toolbelt.” [source]