The analyst group IDC predicts that laptops will overtake desktop PCs as the dominant form of computers by 2011. As laptops become faster and more cost efficient, demand for desktop PCs is likely to grow at a declining rate. The report also found that the role of emerging markets is also growing at a nice rate, with 50 percent of desktop PC shipments in 2006 heading to markets that aren't as mature as Japan and the United States. DailyTech has more.