>Not faster that 5 years ago.
>I have computer iliterated customers running linux and open office with less need of support (and 0 cost) than the equivalent xp user.
Also, let's not forget that in developing countries, manpower is often 10 times cheaper than in the richer countries. This can affect the cost calculation significantly, even if a transition to Linux requires more effort (initially, I would say).
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)