To add to what masterb8tr said, last week the PS3 outsold the XBox360 by almost 90k worldwide. This week, XBox360 sales in NA are estimated to be about 85k more than they were last week. Remember, this sale was only in NA.
In addition, the article about the XBox360 sales increasing 4 fold at Walmart mentions that XBox360 sales were 70% more than PS3 sales. This puts the PS3 at right around 100k, about the same as last week (slightly less than 100k).
So while this week's sales figures should be close, I fail to see how Microsoft sealed Sony's fate. Hell, the PS3 still has a pretty good chance of outselling the XBox360 worldwide.
Btw, I say last week/this week, meaning the week of Oct 31 and Nov 7 respectively.







