Well seeing as how there are only three Tuesdays in December (before Christmas), Apple would have to come out with it as early as possible. This would make it the 5th. I don't know if I buy it. It would make more sense if it came out around Thanksgiving. After all, the busiest buying day of the year is the day after Thanksgiving. Guess we'll see.
Edit: I also noticed this site is in the UK so possibly it will be out in Europe by December but here sooner.