Kerala, India, has deployed GNU/Linux widely in schools. Now it’s the turn of the politicians. They have supplied themselves with laptops loaded with Ubuntu GNU/Linux and saved thousands of dollars in licensing fees. They gave back some of that for training/familiarization but the end result is that they are happy with the choice.
This is another example of fields in which one does not need to plod on the Wintel treadmill to do IT. Another good example is education where most computers are used to find, create, modify and distribute information and GNU/Linux does an excellent job at lower cost.