The end September ship totals was 33.5 360 and 27.0 PS3.
We know for a fact the end Dec 360 total stood at 38.7, because they shipped 5.2. That's where the 39 comes from for 360 (rounded off or a couple weeks into Jan figures), we know that.
For Sony to only be at 31 would be a shipment of 4.0 for the December quarter, staggeringly bad and would mean Sony must have vastly overshipped before.
We know from NPD PS3 sold about the same as 360 in the USA for the Dec q, we know PS3 at the least likely sold somewhat more in Europe, and then there is Japan. So basically, we all but know PS3 outsold 360 in Oct/Nov/Dec, significantly.
So again, Dille is misinformed, or, Sony really really had an overstock of PS3's in the channel going into Oct.