That Wii number is simply gigantic! Remember, July is only a 4-week month for NPD, so sales were significantly higher than in June (a 5-week month). It's so strange to have a Nintendo that seems to be making all the right moves and knows exactly what it's doing. Is anyone still doubting the numbers in Nintendo's financials - which claim sales of 22 million by March 08, and likely ~19 million by end of 07?
Good news for the 360, which seems to have gotten a minor boost to hardware sales from the release of NCAA Football. Not so good news for the PS3, which still can't top the 360 numbers even with a $100 price cut. I do think the PS3 has a good shot to beat the 360 worldwide numbers in 2008 or 2009, but it's looking less and less likely that it will ever pass the 360 in America. By the end of 2007, the PS3 will only be even further behind in this market... For that matter, has the PS3 outsold the 360 in ANY month yet in America? To the best of my knowledge, it hasn't.
VGchartz hardware sales were quite accurate, software significantly less so. Wii undertracked (although less so when Canada is added in), DS overtracked, and everything else within about 10%, a good margin of error. The broad software outlines were pretty good as well (VGchartz had NCAA Football/Guitar Hero/Pokemon all among the top sellers) although the exact numbers were sometimes off. Some of you seem to want complete accuracy from ioi, even though this is statistically impossible to achieve from small samples, but I'm more than happy with what this site is providing. 
End of 2008 totals: Wii 42m, 360 24m, PS3 18.5m (made Jan. 4, 2008)
