The page on Adobe.com gives all broken links (it redirects to the general help section, but does not link to the PDF or LiveDocs):
This is very annoying. All over the web articles, forum posts and blogs link to the livedocs and now everything is gone?
No comment at all on this?
What is the use of integrating web comments and collected information into LiveDocs if you're going to yank it from the site without any warning anyway?
How many carefully edited insights have been destroyed this way? Of course I have the PDFs lying around somewhere, but the web is made out of linked resources, and killing the online resources now broke half the tutorial articles on Flex 3.
Is this the way Adobe is treating it's userbase?
Just tough luck, suck it up and move on please?
People, we have businesses to run on your technology. You don't just remove such a resource without at least giving your users a heads up.