^^^^^^^^^^^While I definitely agree with this, they're dressing up Linux with very Apple-like eye candy such as XGL and Beryl (Compiz) that do a good job of covering up the underlying weakness.^^^^^^^^^^
Pure FUD. Plain and simple.
Linux has proven to be both faster and more secure than windows. XP, and especially Vista.
LOL, here are the actual facts you obviously know little about.
Secunia has issued a total of 3 Secunia advisories in 2003-2007 for Microsoft Windows Vista.
http://secunia.com/product/13223/?task=advisories
Secunia has issued a total of 266 Secunia advisories in 2003-2007 for RedHat Enterprise Linux 4
http://secunia.com/product/4669/?task=advisories