FYI: I found this article which talks about M$'s antispyware product WONT be free for businesses/enterprises... I suspected as much.

http://www.snpx.com/cgi-bin/news55.c...5716126?-11434
Microsoft Antispyware Won't Be Free For All
By Mary Jo Foley

You may have seen lots of headlines today proclaiming that Microsoft has decided to make its Windows Antispyware offering freely available. The truth? A "personal" version Microsoft Antispyware will be free for end-user consumers. But the version with teeth that enterprises will want won't be free. And so far, Microsoft isn't talking about how much that release, which will include unspecified "management" functionality, will cost. Microsoft also isn't talking about A1, its bundled anti-virus/anti-spyware/firewall subscription service. We got plenty of "no comments" from the Microsoft brass at RSA on Tuesday regarding A1.