I found this site while looking for a Australian Oblivion Limited Edition Pre Order

http://www.gameswarehouse.com.au/longpage.asp?gameid=11080

and saw this

Pre-Order Price $89.95
RRP $99.95
Save $10.00

Availability: Pre-Order
Release Date: 25 Nov 2005

Until Bethesda says something else the release date is still "Holidays 2005".

Anything given by a gaming site or a retailer should not be taken for the official release date and, as you said for yourself, it's only a possible relase date. But so is also any other day in November, December and even January.

I'm closing this one.