>    http://code.google.com/p/openpub/wiki/OPDS

o.p.d.s. is another project from the acronym kids,
and it is likely to be limited to .epub books only...

(in its first incarnation, that was explicitly the case;
i think they've relaxed that restriction since then,
but i don't expect they will actually do any work to
support anything other than .epub in the long run.)

and since this bunch is now aligned _with_ adobe,
which means _against_ amazon, i'd guess that the
o.p.d.s. stuff won't interface nicely with the kindle.

just so you know...

-bowerbird