My vote goes to the winner. I really don't care which system is used, I'll adapt myself including the branching model used. I never used GIT but from what I've learned in GIT related threads, clearly it can become a great help for Apache Flex but it's survival won't depend of it IMHO.
Regarding whiteboards, I think they should be more visible so people can easily know what's been working on by the community. João Fernandes