It seems as though more companies are giving serious consideration to moving from Windows to Linux. I’m not sure how much of it can, or will, pan out once the real costs of re-training and disruption are taken into account, but this kind of competitive pressure can only be good for the computer industry as a whole. For those who may be interested here is a site containing Windows to Linux Migration Case Histories.
Note that by definition this is bound to be a list of successful stories – any en route heartache notwithstanding – and will not document the probably huge number of cases where folks just gave up and returned to the arms of the Redmond empire.