Off to print.
The PDF is finished and you should have had emails saying v1.0 is ready for you. Just go to your OBS library and update the 0.9 file to 1.0.
The PDF will go to retail when the softcover and hardcover files have been approved by Lightning Source and proofs have come back (I need to check them obviously before ordering HUNDREDS of them!).
The whole process is about 2 weeks. Annoying I know when we're so close. I'll keep you updated.