Vista Business launched today, & there are already three viruses floating around to infect un-protected systems. But wait, I thought Microsoft said we wouldn't even need anti-virus software on Vista systems....?

"While Vista's e-mail client stops Stratio-Zip, Netsky-D and MyDoom-O, the malware slips past Vista's defenses when users receive infected messages through a Web-based e-mail service, Sophos said."