William Hertling had "Mesh Boxes" in his book AI Apocalypse. If memory serves these were a hardwired monolithic block of circuitry, (maybe even EMP hardened- pushing it) mesh node router type units. Could have been solar powered. I don't remember anything about how large or cheap they were. They were given away under the pretense of providing quick access to the cable telco bound internet but their purpose was to cut both out of the loop with a replacement internet.
A wide spread anonymous p2p will mean total whistle blowing or transparency which in turn will mean there is no point in spying because nothing will be secret and then there is no point in censoring because if they can't even keep secrets they can't pull off censorship effectively. Although Safecoin ostensibly is farmed from energy or offered up computing and network resources it would seem to finally trade in attention. A network of free hopefully gainfully used attention may provide a challenge to state and business power.
update- went back and checked. In his 2012 his super intelligent AI "ELOP" designed the mesh boxes to cut "Comcast" in particular out of the loop. In trouble when sci fi is lining up on you by name. Its joining the ranks of the BEIC, AG Farben, Monsanto, Haliburton.