User Base............Sales(%)..........................A.Rate

PS3 10.28Mil........2.614Mil(44.29%)............25.43%

X360 18.12Mil......3.288Mil(55.71%)............18.15%

Huge week1 attach rate for PS3, X360 isn't bad either 

Only a 700K difference in sales between the console. PS3 is catching on.

 Only a 50% drop off? I think 2 million is much more likely.

what about microsoft telling everyone that GTA IV for 360 sold 2 times as many copyes as the ps3 version first week. suprise huh, microsoft feeding bull shit.

 oh no, your underestimating GTAIV or any GTA game in the franchise minus the PSP games. The game will pass 10 million in 2 weeks.

 Just like how Microsoft told everyone that RRoD is only around 3%?? before putting aside 1.1 billion dollars for repair fund.

I hugely doubt it. If I remember correctly GTA sold 3.1 million units on day one in UK+USA alone, we can probably assume it therefore sold at least 4 million worldwide day one (Canada+Mainland Europe+Others is pretty big) with this being a conservative estimation. Therefore over the next 3 days 1.9M units sold at most.

Given the fact that games almost always decline steeply at first and then slowly drop less and less I would say that you are seriously over-estimating the legs of this game. Two million I feel would be a high estimation for next week.

These numbers are INSANE. Bassicly every 4th PS3 owner bought GTA4.
Halo 3 got completly crushed (actualy if not PS3, Halo 3 would still be the best since it sold 3.78 mln first week on XBOX 360, while GTA IV did 3.28 mln).
Can't wait to see the following legs, probably 1 mln next week.

SSj12, this is the most front loaded game in history. It will not do 3 million next week.