The only number I feel NDP got right was the Wii HW. They were too low PS360, I think this proves that they were too high in the Past, and they do adjust their numbers, they just add or sumbtract from the next month.
About the GTA4 numbers, is it possible that the 6 million number could be shipped? I do remember seeing massive stock sitting on store shelves the days after launch. Because that would make sense, 5 million sold to customers six million sold to retail (massive stock on store shelves). I have to beleive the GTA number more than the others since we cant say that they were "adjusting", however I would not be suprised if GTA4 "seems" to have good legs in may(small drop because of NDP adjustment).
The MKWii number feels good, could be a tad low(on VGC). I think the SSBB number is trash.
Remember last month when VGC was 1 million or so low for SSBB? Maybe it was more like at the most.... Now NDP is "adjusting" - So basically if ioi calibrates SSBB to a lower scale he will begin undertracking.
VGC should take the 200k "overtrack from this month" and reverse the 200k of the adjustments for last month.
End of 2009 Predictions (Set, January 1st 2009)
Wii- 72 million 3rd Year Peak, better slate of releases
360- 37 million Should trend down slightly after 3rd year peak
PS3- 29 million Sales should pick up next year, 3rd year peak and price cut