Let's not go too crazy simply because 360 sales went up right after a price cut...
Still, it's a good week for Microsoft. (That is, as long as you care about raw unit sales and can ignore the massive losses going on in the background.) The real test will be what happens in the next 3-4 weeks leading into the holiday season.
End of 2008 totals: Wii 42m, 360 24m, PS3 18.5m (made Jan. 4, 2008)