Great news, Americans! Despite all the naysayers with their "evidence" otherwise -- pointing out that South Korea has more broadband connections than we do, or that in some countries speeds are better than they are here -- the United States has come out at the head of the class. And that's before the government rolls out the "broadband stimulus" bonanza. According to Leonard Waverman (the dean of the prestigious Haskayne School of Business at the University of Calgary), Americans are not only the most productive users