From the New York Times:
The economy may be teetering, but the personal computer business is still nimbly running at full speed, according to the tally of sales in the fourth quarter of 2007 from the International Data Corporation. Worldwide, 77.3 million PCs were sold in the quarter, up 15.5 percent from the fourth quarter of 2006. That represents almost double the growth rate of 2005 to 2006.
For the year, IDC said, 297 million PCs were shipped, an increase of 14.3 percent over 2006.