This isn't a critical issue (nothing is broken) but we're a week from another release candidate, so the new Py3.2 package organization (unittest was flat in Py3.1 and its test were under Lib/test) is about to become a de-facto decision that will be hard to undo.
Well can we stop being melodramatic? Tests are not part of the API and so they are free to move whenever we want. No need to hold a release candidate for that.
Of course there is. Any addition or removal of files at this point has the chance of breaking the release process, which may fail to pick up files, or break in trying to pick up files that it expected to be there. This has happened *many* times during the alpha and beta releases of 3.2, so it's not at all a theoretical problem.
After the next release candidate, I'd prefer to see no changes whatsoever to the tree (but it's Georg's decision, of course).