Bluecoat came out today to pitch their caching proxy with antivirus and url filtering. The antivirus piece is a single engine. You can pick from multiple vendors for an AV engine, but there will be only one. They are doing nothing that I can see to address the problem of zero day viruses and targeted viruses. Their comment is that multiple antivirus scan engines slow things down too much. That is not what’s service claims. I think the Bluecoat solution would still let viruses through. Its probably better than what we have, but is the difference woth the change?