As a reminder:

NPD = Sales data for USA + Canada
Media Create = Sales data for Japan. I used the four weeks of data spanning 11/05/07 through 12/2/2007.
It’s harder to get a cleaner data set for Europe numbers, so those are currently omitted.

Overall, not bad. If I could get Europe sales data in there, that would probably look much better. What does everyone think?

BTW, check out the nice Google Chart API that I used to make this chart through a simple URL string: