Some of you may have noticed that Adobe Open Source has been down for some time. The service is currently unavailable as we investigate a critical issue with our server infrastructure. We currently do not have an ETA on restoring service, but I will share more information as it becomes available. I sincerely apologize for this inconvenience.
Thank you for your patience,
Senior Product Manager, Flex SDK
UPDATE: Service to opensource.adobe.com was reinstated Friday, 10/22 at 5 PM PST.