Just a quick side note:
The Xbox 360 is now 2.3m units ahead of the Xbox for the same week, of aligning the launches. This represents a 24.2% increase vs. the Xbox's LTD sales.
If that trend continued in it's entirety, and the X360 only had a 4yr lifespan (ie, the X720 came out in November, 2009), the X360 would manage a total end LTD of 30.42m units.
However, having said that, the X360's lead has been increasing every week by major leaps and bounds since the price drop. The X360 and Xbox only crossed parity in December last year: it's gained that 25% advantage in just 10.5 months.
If that 25% advantage continued at it's current rate over the Xbox, and the X360 lasted only until November 2009, the Xbox 360 would reach 44.5m units.
Back from the dead, I'm afraid.
