I'm definitely in agreement with Martin here. Because Apache has (very necessary) policies to control what gets committed, it is not really geared toward the potentially large community involvement that Flex might attract when we finally get a chance to get going. We may well want to undertake some big changes, involving lots of people who aren't committers. Or we may want to simple share experimental ideas. Apache's SVN is not set up to support either of these very well, whereas Github is. So it'll make complete sense for collaborative development work to take place away from Apache and for it to be fed back in - via Jira - when ready to form part of the official Flex code.
If all the PPMC members are going to take Nicholas' "if I wasn't involved, then I won't accept it" attitude to the efforts of non-PPMC people, then the rest of us might as well just give up and go home now... David.