From Chris Walsh:
Disclaimer, use this at your own risk, if this voids your warranty I’m not being held responsible, blah blah all that junk. Well, first, thanks go out for Microsoft for releasing a support tool for Windows Phone yesterday. Inside that tool, were unreal hidden gems. Basically they’ve created a managed wrapper over the whole update process for us, rather nice of them. [...] All you need to do is run the ChevronWP7.Updater.exe console app and follow the prompts.
-- Chris Walsh
I was able to pull down the pre-Update and NoDo for my Samsung Focus just moments ago. Go screw yourselves, AT&T.