Allow MrStickball to spin the Wii being off by 1m, and the fact that it may indeed be accurate...It *is* NPD, BTW.
1) VGC undertracked the Wii by almost ~1m last month, and then adjusted the numbers, and most likely used the new methodology. We've seen, very often, that adjustments by VGC almost never work - they end up being right in the end. Although the numbers should be adjusted down, let's remember that it's not because VGC is bad, just that the market is wacky.
2) As to the probability that such a blistering November could be followed by a 'poor' Christmas showing (in terms of a decrease of weekly sales): We hear each week how the American economy is in the tank, and I'd argue that those that are budget conscious - the average mainstream family - is probably cutting back. If this is the case, then the Wii would be the 1st place to go, I think. The 360 had the advantage of being cheaper + supply problems for the Arcade...It did phenominal given how much it's been getting beat by the Wii as of late.
Software is interesting. This was one of the more accurate months we've seen, which is great. Awesome to see Left 4 Dead to so well, and need about a 100k adjustment.
And for the Wii trends in SW being so massive: Let's remember consumer trending with the Wii. They've always been stronger during the holiday months of Nov-Dec (again) due to family purchasing. Even if HW may look 'bad', that doesn't mean you don't have a massive install base for the Wii that needs new games - which is why games like Wii Play, Fit, Kart and such did so well.