Ok... I've look on IGN and this is what it says.
According to IGN.com the release date is November 28, 2005 FOR UMD.
look on the right side panel and you'll see the release date
and for DVD it still remains November 29, 2005
-look on the right side panel thingy again.
Also amazon and ebgames has those dates...not only that....I recently found a poster of an AC poster...
So yeah, I think we can conclude taht the release date is November 29, 2005.