This is awesome, however, municipalities have put fear into people wishing to do this over legal issues arising from what someone might do on your connection. Who is to blame when something illegal (mp3 download, etc) happens? That whole issue needs to be put to rest so we as a society can create our own Internet without fear of suppression.
+1 great point. I sometimes leave my wifi open (I live in a small town, if that means anything) but then I consider the legal implications and lock it up for a while. ...then repeat...
The best solution would be allowing people to risk free run grid networks (which would be, I think, very low bandwidth) and have communities also supply separtae low bandwidth Internet connected wifi for free. We would then use a paid for service for anything for more than text or other low bandwidth uses. No one would download large mp3s, watch Netflix, etc. from the very low bandwidth community wifi, and the separate grid network would be local and likely not have anything to attract "Imperial interest" (sorry about the Star Wars metaphor :-)
Local grid networks could be part of support for local libraries, community centers, etc.
Having an open wifi should leave you free of any charges in the same way that an ISP is. Maybe it should be not culpable modulo keeping logs of everything for up to three months so that law enforcement can attempt to find anyone committing a crime once they have a warrant.
There was a surge in people doing wifi WAN style networks across whole cities, back when internet speeds were slow+expensive, and decent directional wifi antennas were available fairly inexpensively.
I think low-cost high-speed internet largely killed the need for it: perhaps Prism has given us a nudge to start again?