For those whom may be interested --

I just posted a little write up of how we use Pound at WordPress.com 
(specifically in regards to our image serving infrastructure):

http://barry.wordpress.com/2007/11/01/static-hostname-hashing-in-pound/

In the post, there is a link to a patch we are using as well as an 
explanation of how we are using it.  Direct link to the patch is here:

http://barry.files.wordpress.com/2007/11/pound-static-hostname.txt

Cheers!

Barry

Any insight on such a big and successful implementation of Pound is very
much welcome.
Thanks Barry.
[...]