NetworkWorld has an article about a frustrating security specialist switching his company from Windows on Interl hardware to Mac (also in his blog).
I'm not saying that Windows is more secure than Mac, because its not true. I just think it's a very strange move to switch all hardware. The cost is enormous.
Most security problems are because of users, hardware problems happen. He doesn't say why not Linux.
I'm wondering how many problems he'll face in close future.