He's right, but this time, unlike the thumb-fingered proprietary opposition that Microsoft has faced in the past, open-source programmers aren't going to be caught napping.
May 2, 2004
Longhorn's Real Job: Trying to Gore Linux
Miguel de Icaza, one of the most respected open-source programmers and father of the Mono project, which attempts to bring .NET to Linux, says it best. He writes in his blog, "What makes Longhorn dangerous for the viability of Linux on the desktop is that the combination of Microsoft deployment power, XAML, Avalon and .NET is killer."