They should have done this much sooner.

The Gendarmerie says it will have 72,000 PCs moved over to Ubuntu by next summer, and they will continue to migrate because it saves so much money. And here’s the important bit: in their experience using open source software so far, the total cost of ownership falls 40 percent, which is massive when you are talking about tens of thousands of machines.
http://www.geek.com/apps/after-switc...rcent-1572233/