MS Vista to shrink need for Personal Firewalls and Host Intrusion Prevention?

ZDNet has an article on a new Yankee Group report out today that says Microsoft's new Vista operating system will have improved security capabilities and "significantly shrink" the market for add-on anti spyware and personal firewall software. "Yankee Group expects Vista to significantly shrink the aftermarket for antispyware and desktop firewalls," analyst Andrew Jaquith wrote in the report. I saw Jaquith present at this spring's RSA conference in San Jose, CA and I think he is one of the better analysts covering the computer and network security industry right now.