I put a page up on the Macromedia Labs wiki the other day about how to get the Labs source code repository. We have Subversion running on the Labs server for things like ActionScript libraries, examples, etc. Right now, we have about 57 small examples of the Flex Framework checked in, and we’re working on a ton of other stuff. (We don’t have the examples linked to their source yet, but we’re working on that.) The best part is that we’re releasing all the code under an extremely liberal license.
I’ll make another post when we check in the next batch of code.