I think you are within the limits of my numbers DarkNight...
Remember my estimations put the Wii at 2.1 million OVER the Magic Number on October 31st. So Late August, is within reason(possible without nintendo doing something crazy like raising production to 3 mil a 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