Same but that's not good enough. It has to be such that, say, an IT department could deploy and manage machines to an office of 500 people with questionable com

Same but that's not good enough. It has to be such that, say, an IT department could deploy and manage machines to an office of 500 people with questionable computer literacy. That's the market windows has nailed down. I remember reading about some German city trying to switch over to Linux and being forced to eventually switch back. I'm a total libre evangelist but we don't have the power to overcome multi billion dollar engineering and sales departments...