In Google desktop search not enterprise-ready from News.com, you'll read about Gartner telling businesses to avoid GDS in a corporate setting.
"We have no problem with it being used for personal use," said Gartner research director Maurene Grey. "Our concern is (that) when it is used in a corporation, we have some security and privacy issues. Google says it will collect only nonpersonal data, but in a corporation how can you monitor what's being collected?"
You can read about how desktop search tools might eventually become a new target for virus writers from News.com.