IT pros harbor concerns about security in the cloud and the limited functionality presented by Google tools such as Gmail and Google Docs. Tech pros are impressed by Google’s Web-based collaboration capabilities, even though Google Apps lacks some of the advanced functionality found in Microsoft Office. Security is the main reason “why we haven’t had a lot of momentum” at the moment, one IT pro says. Microsoft, of course, is now getting into the cloud business with hosted versions of Exchange and SharePoint, and Office Web Apps.”]