Book Kismet

I’ve started working on a project called Book Kismet. The initial seed for the idea was this message I posted to a Google Group devoted to an innovative “social books” project housed at the University of Toronto, and it’s my hope that BK will wind up being a useful tool for them.
The functionality I want to see [...]

I have been thinking about the challenge of integrating physical and digital worlds via [social books] and I have a suggestion.  I think you need to be designing at a higher level of abstraction: really, designing a standard instead of a device.
Think about it this way.
Class of bibliographic entities:

printed book (i think “codex” is too jargony)
journal article
report
e-book

Class of [...]