I disagree with OP. I think the PS3 saw a strong boost in fall '07, but I think that's the exception and not the rule, as Sony started a huge marketing blitz in the late Summer. It ran into your standard holiday marketing blitz, to give an impression of strengthened position overall. I think Sony definitely strengthened their position, but not to the extent necessary to match 360 sales by the end of '08. I've said elsewhere that I honestly don't think PS3 will ever get within 5 million units of 360, unless something major/unexpected happens.
If you align launches, there are roughly as many weeks that the 360 outsells the PS3 worldwide as vice-versa, counting from right after PS3's Europe launch. I think 360 has slightly more, but it's close. That's the status quo, and that's what things are going to return to after the holidays.
Just how it is.








