A report published this week says that Linux is now a credible alternative for the core of the data centre, and will be one at the client end within two years. These are perhaps not what you'd call revolutionary conclusions, but Butler Group's Linux in the Enterprise (further information here) is a fairly detailed and comprehensive survey of the state of art from a business perspective, and should be pretty useful reading for executives looking for background while they consider taking the plunge... http://www.theregister.com/2004/09/10/butler_on_enterprise_linux/ Thanasis