'Obnam, "a snapshotting, de-duplicating, encrypting backup program"
has been released by its developer, Lars Wirzenius. The application
has been in development since 2006 when Wirzenius decided that he
could not find a backup application which met all his demands, despite
finding various applications with one or two of his requirements.'
-- source: http://h-online.com/-1605021
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
Ph. +64 (7) 858-5174