A collision of the Internet Book Mobile ( http://www.archive.org/texts/bookmobile.php ), the PersonalTelco Project , ProjectGutenberg and the spirit of PublicDomain works.
Stationary installations which would server PublicDomain works up over wireless and cat5 connections with a few key sites offering printing services.
Low cost and low maintainence computers with as few moving parts would be the best solution though that may not always be what can be afforded.
The main focus of these installations would be to serve up PublicDomain works. Secondary benifits include increaseed PTP wireless coverage, a potential place of community centric information, and more.