A couple of days ago Google announced that Google Desktop Search was now available for enterprise users.
Google Desktop Search, Enterprise Edition is available for free and offers additional security features along with tools that IT managers can use to configure the service across an enterprise. GDS Enterprise Edition also makes IBM Lotus Notes files searchable. Google is offering a premium support package ($10,000 a year for each 1,000 users) for the product that provides "guaranteed response times," access to a support site, and membership in their Premium Support user forum.
More in this NewsFactor article that also includes comments from Jim Slaby at Yankee Group who says that several privacy and security issues still exist.