"The predictions come from IDC and they reflect the fact that in the last few months Linux on the desktop has become a reality. It is now possible, for example, to buy a Linux-based PC (running LindowsOS) from Evesham. In the United States, Wal-Mart sells machines based on Lindows, Mandrake Linux and others. But though Linux may have its foot in the door, taking the next step to becoming a mainstream success is proving a more difficult proposition..... IDC expects that Linux will become the No. 2 desktop OS in the next year or two, surpassing the Mac OS, and will continue to hold this rank for the remainder of the company's five-year forecast....."
More here at ZDNET.COM.