By the way, the youtube video showcases this project really well.
(You know, like the neighbourhood "take-a-book, leave-a-book" little libraries, except for... digital content... It would fly an appropriate "skull + crossbones" flag...)
I created a PirateBox on a little GliNet router a while back with the intention of sharing public domain content but didn't do so beyond having a quick play around with it myself.