You are now able to download the Flex 2.0 Beta 1 from Adobe labs. There are some instructions on the installation. You have do uninstall Flex2 Builder totally from the system and delete the project definitions.
I do not have the time to test it out. What a shame. More to come on the weekend. Maybe an updated flIRC.
Links:
Just discovered this blog! Some great stuff here! But it seems that all the AS3 demos doesn’t work anymore with the newest Flash Player 8.5 release. I’m getting a window with errors and nothing else appears.