I was originally told that it wasn't released yet. When I said that according to the forums here, others are using it, I was then told it had been delayed. Then I was told the same thing you mention... that it was released in blocks (as Eric insinuated in an earlier post)... but for some reason that didn't set too well with me... seems odd that a database of serial numbers has to be processed in blocks rather than just done (but maybe it's a volume thing to keep databases not getting hit too hard at once... dunno...)
Anyway, that's when I called Autodesk and was told the same thing directly... that it is rolled out in chunks... but the lady was kind enough to manually push the license through.
So she made me happy and I got to test it out a little last night and this morning finally!