Not to mention that from coming shipment reports we will probably see that MS seriously stuffed the channels during holiday period just to be able to declare that they beat PS3 for the year.
Well, they didn't overship for the purpose of beating the PS3 for the year (they still lost that battle to the 3DS anyway). Retailers legitimately expected the 360 to sell more during Christmas than it ended up selling. But yeah, I expect that they did end up overshipping during the Oct-Dec period.