Correlation between sitting still and achievement?

Wendy posted this article that I think is extremely interesting. Basically, a major study (34,000 kids) found that there was no correlation between kids' ability to sit down and "behave" at age 5 and later success in school.

http://blog.newsweek.com/blogs/nurtureshock/archive/2009/10/22/in-defense-of-children-behaving-badly.aspx

I thought some of you could use this news as much as I do today.

Thoughts?