BTW, the answer to your "Maybe someone has built it already?" question is that it was called Mojo Nation and as enticing as the concept may appear, it won't wor

BTW, the answer to your "Maybe someone has built it already?" question is that it was called Mojo Nation and as enticing as the concept may appear, it won't work. MN does live on as the progenitor of BitTorrent and Tahoe-LAFS, but the core idea of persistent, secure peer-to-peer storage across a dynamic peer group is a fools errand.