I also have this problem right now.
It just keeps updating and updating in Adobe Viewer. After several tries of closing and reopening the app I tried logging out of the Adobe Viewer, but then I cant even log in again. (Authentication failed) Although I know the login details is correct.. :-/
I've tried contacting Gold Support but nobody is there.
Yes - still down at 6:30 PM PST
I thought Adobe was working on back end services for v21 sprint!
I get better hosting on Dropbox!
btw - by a publication from O'Reilly and they will push it directly into your Dropbox. I think I like that model.