I love NPD day, especially at places like NeoGAF.
Y'know, if the PS3 is going to have any kind of serious market share it is going to have to, I dunno, maybe actually outsell the Xbox 360. For at least one month. Sometime.
The Wii, on the other hand... well, I didn't see that level of success coming back in October. It will be interesting to see what happens when their supply situation resolves. I maintain that they are in a sufficiently different market space to not directly compete with the 360, but we'll see.
It's a fascinating console war. Grab some popcorn. :)