Kickstarter campaign: http://www.indiegogo.com/calyx
But do know they are describing launching a commercial service. Not that doing so is bad, but don't confuse "non-profit" with "non-commercial". They might not even be a non-profit, as their About page reads: "launching the first not-just-for-profit telephone and Internet service"
There are fully open source community-based equivalents and efforts, such as:
Free Network Foundation
And many of the components of what Calyx will offer are available separately.
[Caveat: I'm not a network engineer so don't know the details. I previously have built and hosted a Freedom Tower for the FNF.]