Interesting news: Microsoft is buying Sybari, makers of the outstanding Antigen line of anti-virus products (and some pretty good anti-spam tools, too). Interestingly, there are Antigen versions for Exchange, Live Communications Server, SharePoint, and even Domino; I expect that the breadth of their product line made them a more appealing target than some of their peers. It'll be interesting to see how this acquisition works in conjunction with MS' buy of GeCAD's RAV technology. However, it will be even more interesting to see what effect this announcement has on the second-tier AV vendors-- companies like Command and Panda have got to be sweating now. (Not to mention that many organizations who have stuck with products they don't really like will now use this as an excuse to move!)