This is a good opportunity for institutions to move to Linux instead of Windows 8, if they're going to have to train their users to use it anyway:

https://joinup.ec.europa.eu/community/osor/news/education-mi...

As for why ATM's aren't using Linux, is beyond me. I guess Microsoft got to them first. This is the problem with open source projects over commercial solutions - there's hardly anyone out there working hard to promote that solution to users, other than the "community".

Things are changing and the community and social media can have a bigger impact, but not when these ATM owners had to make the choice, and Microsoft is still spending billions on promoting their stuff.