Sales data shows that even if Netbooks have yet to met their end, they're bleeding out. According to IDC, U.S. netbook sales have steadily dropped from 2.3 million units in Q1 2010 to about 800,000 units in Q4 2011. Netbooks have seen a bit of growth in Latin America, Central Europe, the Middle East, and Africa during that time, but worldwide, netbook sales are sliding.