@sagexsdx, I believe that we as a community did not account for the dropping ratio of PS3 to 360 copies of multi-platform titles. Earlier in the year, we saw 360 games selling only twice as many copies as the PS3 version, but in the last couple months of 2007, there was a trend for the 360 version of games to do triple the amount of the PS3 version or even more. This can be seen in the comparison of the first month's sales of this title versus the first month's sales of this title on the 360. (It can also be seen in the Call of Duty 4 numbers for December.)
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I believe that we as a community did not account for the dropping ratio of PS3 to 360 copies of multi-platform titles. Earlier in the year, we saw 360 games selling only twice as many copies as the PS3 version, but in the last couple months of 2007, there was a trend for the 360 version of games to do triple the amount of the PS3 version or even more. This can be seen in the comparison of the first month's sales of this title versus the first month's sales of this title on the 360. (It can also be seen in the Call of Duty 4 numbers for December.)