I'm not sure I understand how they did this. Did the residents' money go to building the local network for the village? Who provides the backbone? I just wonder how applicable this might be to small towns in the U.S.
I am very interested in similar projects, like B4RN in the UK- I am working to form a similar community initiative in Dade County, MO, USA. (DadeCountyFiber.org). My current plan is to operate the ISP locally as a nonprofit, rather than leasing it to the ISP as in the article (More like the B4RN project).
As for the peerings of TNG: http://www.cidr-report.org/cgi-bin/as-report?as=AS13101
Good spots to scout for: railroad stations, microwave towers, datacenters (unlikely, but still), highways.
You could try pinging @malcolmcorbett as he has been involved in community broadband