I've just had an excellent experience upgrading a huge project to Flex 3. all except the CI server that uses Flex Ant Tasks. In short - FLEX_HOME is hard coded so. there really isn't any way to run 2.0.1 and 3.0 builds on the same machine. That is, not unless you modify the source FAT to do so. The EULA has me worried that someone from Adobe is going to come and lay claim to my left-buttock. Anyway - I'd love to contribute my work back to the community. Any recommendations Adobe-ites?
Rick Winscot

